Morning Joe 04/24/12

Fmr. TSA admin.: Passengers should be able to carry knives

Former TSA administrator and author Kip Hawley joins Morning Joe to discuss his new book "Permanent Emergency," why he thinks passengers should be able to carry knives and liquids on planes and why air passengers will, for the time being, continue to take off shoes when going through airport security. ... more Duration: {{video.duration.momentjs}}