You, Mr. Bank Customer! Halt! Very slowly, drop that cell phone

Bruce Schneier makes a really good point about banks that are apparently instituting bans on cell phones in the name of security:

This is just plain dumb. It's easy to get around the ban: a Bluetooth earpiece is inconspicuous enough. Or a couple of earbuds that look like an iPod. Or an SMS device. It only has to work at the beginning. After all, once you start actually robbing the bank, a ban isn't going to deter you from using your cell phone.