There's a bit of an internet buzz this week around a video of a law lecture on why you should never, ever, ever, ever talk to the police. The video begins with the law professor and criminal defense attorney, who is a good speaker, making that case, and then a police detective, interesting but not quite as eloquent, agreeing with him and describing the various tricks the police use every day with people stupid enough to talk to them.

I often rant here about the need for better universal power supply technology. And there is some progress. On a recent trip to Europe, I was astounded how much we took in the way of power supply gear. I am curious at what the record is for readers here. I suggested we have a contest at a recent gathering. I had six supplies, and did not win.

Here's what the two of us had on the German trip in terms of devices. There were slightly fewer supplies, due to the fact several devices charged from USB, which could be generated by laptops or dedicated wall-warts.

• My laptop, with power supply. (Universal, able to run from plane, car or any voltage)
• Her laptop, with power supply.
• My unlocked GSM phone, which though mini-USB needs its dedicated charger, so that was brought
• My CDMA phone, functioning has a PDA, charges from mini-USB
• Her unlocked GSM phone, plus motorola charger
• Her CDMA Treo, as a PDA, with dedicated charger
• My Logger GPS, charges from mini-USB
• My old bluetooth GPS, because I had just bought the logger, charges from mini-USB
• My Canon EOS 40D, with plug in battery charger. 4 batteries.
• Her Canon mini camera, with different plug in battery charger. 2 batteries.
• Canon flash units, with NiMH AA batteries, with charger and power supply for charger.
• Special device, with 12v power supply.
• MP3 player and charger
• Bluetooth headset, charges from same Motorola charger. Today we would have two!
• External laptop battery for 12 hour flight, charges from laptop charger
• Electric shaver -- did not bring charger as battery will last trip.
• 4 adapters for Euro plugs, and one 3-way extension cord. One adapter has USB power out!
• An additional USB wall-wart, for a total of 3 USB wall-warts, plus the computers.
• Cigarette lighter to USB adapter to power devices in car.

That's the gear that will plug into a wall. There was more electronic gear, including USB memory sticks, flash cards, external wi-fi antennal, headsets and I've probably forgotten a few things.

There are a variety of tools out there to help recover stolen technological devices. They make the devices "phone home" to the security company, and if stolen, this can be used to find the laptop (based on IP traceroutes etc.) and get it back. Some of these tools work hard to hide on the machine, even claiming they will survive low level disk formats. Some reportedly get installed into the BIOS to survive a disk swap.

Last weekend I had a great trip to Wyoming, staying in Jackson for a bit and then into Yellowstone with a Cody side-trip.

As always, tons of photos and a new gallery of panoramic photos of the area. My last trip to Yellowstone featured poor weather and a very early (low quality) digital camera so I was pleased to photograph it again.

Check out my Gallery of Panoramas of Wyoming

Last weekend I attended a small gathering in the Grand Tetons where Boone Pickens came to promote his new energy plan. The billionaire oilman is spending $56M of his own money per year on ads for this plan, and you will see them if you watch ads. Otherwise they are at his Pickens Plan web site.

This special chapter in my series of essays on Robocars describes a fictional week in the Robocar world, with many created examples of how people might use Robocars and how their lives might change.

If you haven't been following my essay on Robocars, this may be a good alternate entry to it. In a succinct way, it plays out many of the technologies I think are possible, more about the what than the how and why.

For part seven of my series on Robocars, I now consider the adjunct technology I am calling Deliverbots -- namely robot driven trucks and delivery vehicles, with no people inside. These turn out to have special consequences of their own. Read:

Deliverbots

For part six of my series on Robocars, consider:

When can robocars happen?

I discuss what predictions we can make about how long the Robocar future will take. While there are many technological challenges, the biggest barriers may be political, and even harder to predict.

For part five of my series on Robocars, it's time to understand how this is not simply a utopian future. Consider now:

The Downsides of Robocars

Robocars will suggest a great number of possible changes in the way we design and market cars. I now encourage you to read:

Automobile design changes due to Robocars

For part three of my series of Robocars, now consider:

Roadblocks on the way to Robocars

A lot of obstacles must be overcome before Robocars can become reality. Some we can see solutions for, others are as yet unsolved. It's not going to be easy, which is why I believe an Apollo style dedication is necessary.

In part two of my series on Robocars, let me introduce:

The Roadmap to Robocars

My most important essay to date

Today let me introduce a major new series of essays I have produced on "Robocars" -- computer-driven automobiles that can drive people, cargo, and themselves, without aid (or central control) on today's roads.

It began with the DARPA Grand Challenges convincing us that, if we truly want it, we can have robocars soon. And then they'll change the world. I've been blogging on this topic for some time, and as a result have built up what I hope is a worthwhile work of futurism laying out the consequences of, and path to, a robocar world.

In light of my recent studies into transportation energy efficiency I've learned a lot more about the energy budget of the USA and the world.

Sadly, I must report that after our initial success in getting the members of the House to not grant immunity to telcos who participated in the illegal warrentless wiretap program which we at the EFF are suing over, the attempt to join the Senate bill (which grants immunity) to the House bill has, by reports, resulted in a so-called compromise that effectively grants the immunity.

As part of my research into robotic cars, I've been studying the energy efficiency of transit. What I found shocked me, because it turns out that in the USA, our transit systems aren't green at all. Several of the modes, such as buses, as well as the light rail and subway systems of most towns, consume more energy per passenger-mile than cars do, when averaged out. The better cities and the better modes do beat the cars, but only by a little bit. And new generation efficient cars beat the transit almost every time, and electric scooters beat everything hands down.

I want to expand on my proposal to standardize connectivity for devices in hotels. Let's add to that and develop a regimen of having bluetooth keyboards everywhere. Every hotel room should have one (or the hotel should at least have one to loan you at the desk.) They should be in every cafe, on the train and every company meeting room and lobby.

They should be on the street, in kiosks. They should be at the train station. Everybody should have one at their house, for guests. And many other places.

We're moving to smaller and smaller portable devices. Not just keyboard-less iPhones and PDAs -- the new rage is ultra-mobile laptops with reduced size keyboards. We want our devices to be smaller, but there's one thing you can't shrink and keep fully usable, and that's the keyboard. Yes, people get fast on their tiny blackberry keyboards, and yes there have been clever inventions like laser projected keyboards, inflatable keyboards and the much-missed butterfly keyboard, but the small ones just can't cut it.

The small screen we seem to deal with. And via goggles or projection, there are ways to make a large screen on a tiny device if we try hard enough. But solving the typing problem requires some grander change, like perfect speech recognition, or alternate ways of typing.

A subject of debate in environmental circles revolves around whether the successful 70s opposition to nuclear power was a wise idea. At the time, it was never thought of as a choice between nuclear and coal, it was thought of simply as fear of the dangers of nuclear. Unexpectedly, it ended up being a push for coal, which of course kills far more people and emits more radiation than U.S. nuclear plants ever have.