William Black is a former bank regulator whos seen firsthand how banking systems can be used to commit fraud and how liar's loans and other tricky tactics led to the 2008 US banking crisis that threatened the international economy. In this engaging talk, Black, now an academic, reveals the best way to rob a bank from the inside.
http://www.ted.com/talks/william_black_how_to_rob_a_bank_from_the_inside_that_is