Does.Not.Compute. By David Kurtz | December 30, 2009 4:59 am JOIN TPM FOR JUST $1 If an underwear bomb means we’re not safe under Obama, does a shoe bomb mean Bush didn’t really keep us safe after 9/11? David Kurtz (@TPM_dk) is TPM's executive editor and Washington Bureau chief. He oversees the news operations of TPM. Have a tip? Send it Here!