28 Days

Government Accountability Office investigators were able to get a license to buy nuclear materials and buy up enough radioactive material to build a dirty bomb. They report virtually no scrutiny from the Nuclear Regulatory Commission -- which should have stopped them dead in their tracks.

It took only 28 days to get the license from the NRC -- with a minimal background check and no face-to-face interviews with the undercover investigators. No one from the NRC ever showed up at the fake business to see if it was real.

In fact, the business never existed. The investigators were able to use a mail box and fax machine to get the papers they needed, counterfeit them, and then went on a shopping spree buying up all kinds of glow-in-the-dark goodies that could be used to make a terror weapon. (WaPo)