Four million people are expected. It sounds like a logistical nightmare, but they seem to have it covered:
People attending the ceremony and parade on Jan. 20 can expect to be searched by machines, security personnel or both. Precautions will range from the routine — magnetometers like those used at airports — to countersnipers trained to hit a target the size of a teacup saucer from 1,000 yards away. Plus undercover officers, bomb sniffing dogs and air patrols.
I'm planning on attending, but I need to figure out a convenient way to blog from the scene. The last inauguration I watched in person was 1989 (Bush 41). I imagine this one will be waaaay different.