It felt a bit ironic that I found this in my inbox right after checking out your OSCON slides. (Which were spot on, BTW)
From: Bill Shore [mailto:billshore@fbi.gov] ...
Subject: Wireless networks - Warchalking/Wardriving
It has recently been brought to my attention that
individuals/groups have been actively working in the Pittsburgh area
as well as other areas of the United States including Philadelphia,
and Boston, and the rest of the world for that matter, to identify
locations where wireless networks are implemented ...
... Identifying the presence of a wireless network may not be a
criminal violation, however, there may be criminal violations if the
network is actually accessed including theft of services, interception
of communications, misuse of computing resources, up to and including
violations of the Federal Computer Fraud and Abuse Statute, Theft of
Trade Secrets, and other federal violations ...
