Security Security also falls into the communication category, largely because the best lock is the human eye and the basic objective of the security system is to keep me in touch with BEHEMOTH even if I'm out of direct visual contact. There are 6 levels of security sensors, and a variety of automatic responses to intrusion that depend upon the environment, violation level, and my current paranoia index. When parked in front of a restaurant, for example, human proximity is not an alarm condition -- but it would be if the bike were locked in someone's supposedly secure garage overnight. The "long-range sensor" is based on an Alpha microwave doppler motion detector. A special conical antenna reflector allows this normally directional device to see about 10 feet in all directions from its vantage point atop the RUMP. Level two is physical motion, using the well-proven UNGO Box sensors and associated electronics. If this is triggered, someone is touching the bike (or it's very windy). Level three is the opening of any access panel or removal of any subassembly, level four is the toggling of any switch on the front panel, and level five is someone sitting on the seat. Level six, the most serious, is a change in satellite nav coordinates without entry of the proper access code, indicating that someone is in the act of stealing the bike (or that I had one too many beers with my pizza and forgot the password -- although with a binary handlebar keyboard it doesn't have to be much of a password...). The default response to any condition above the current alert threshold is for BEHEMOTH to "beep" me via my 2-meter handheld transceiver. I can then issue a touch-tone command to cause the system to transmit a more detailed spoken alarm with the speech synthesizer. The graphic security management screen allows any number of other responses, again depending on conditions. In some cultures, having the bike speak a loud warning is extremely effective -- it denotes ominous machine intelligence in something that is already quite alien. "Do not touch, or you will be vaporized by a laser beam!" In other cultures (Silicon Valley), this is simply regarded as amusing nonsense. Alternative responses thus include a traditional auto security siren or anything else that seems psychologically appropriate. Under more serious alert conditions, the bike could dial 911 and deliver an emergency message ("Hello police, I am a bicycle; I am being stolen; my current coordinates are..."), while beaconing its location and a call for help on ham packet frequencies and via the Qualcomm satellite link. Of course, the best part of the security system is peace of mind -- my own nervousness, from a classic risk-management perspective, has always been much more serious than the actual threat of theft.