Here's some information that is new to me; perhaps it is new to others as well. Normal pin and tumbler locks can be easily defeated with a modified key. This was enough information for me to reconsider my home security status.

TV New Reports:
http://www.youtube.com/watch?v=ya9CsMioPxA
http://www.youtube.com/watch?v=5UcTo-A4XLA

Engadget Article Links:
Bump keying: $1 keys open any lock
The Lockdown: Locked, but maybe secure (part 1)
The Lockdown: Locked, but not secure (Part 2)

Here's the sad part. You can buy a bump key over the internet for the paltry sum of $3.00.
http://www.bumpkey.us/

Bump proof lock brands: Medeco and Schlage Primus