Personally, I’m not sure how I feel about them wardriving. On one hand, it’s good that they’re doing some proactive public service, but on the other hand, why are they doing proactive public service (isn’t there something better they could be spending their money on)?
I’m the “president” of a community wireless group (www.cafwap.net), and our stated policy on security is “no security.” We believe that securing your wireless network is just an attractive nuisance for hackers and becomes a liability. Let other networking protocols handle the security (ssh, https, etc.), because 802.11+WEP is known to be worthless, easily crackable security. I wish I had the time to drive around D.C. following the Feds and distributing pamplets titled “How to crack 128bit WEP keys in 4 hours using Open Source tools.”
Unfortunately, if you have IP to protect, you shouldn’t be running a wireless network. :-/