Many air travelers, both passengers and pilots, have expressed their frustration with the full body scanners and enhanced pat-downs enacted by the Transportation Security Administration earlier this month. Secretary of State Hillary Clinton and Homeland Security Secretary Janet Napolitano say our privacy is a small sacrifice for our safety, but many people don't think this is a tradeoff they want to accept.

The investigation continues into how Uma Farouk Abdulmutallab was allegedly able to smuggle explosives onto Northwest Airlines Flight 253. President Obama from Hawaii said in a press conference that "we need to determine just how this suspect was able to bring dangerous explosives aboard an aircraft and what additional steps we can take to thwart future attacks." At The Takeaway, we want to find the answers to that, too: What exactly went wrong, and how can it be prevented in the future? To help with the answer is Barbara Peterson, a senior aviation correspondent for Conde Nast Traveller, and Chris Yates, and aviation security analyst for defense publication Jane's.