Fmr Emergency Director On Giuliani's 9/11 Record: He's Telling A "Flat Out Lie"

A filmmaker who was behind documentaries that bashed Rupert Murdoch and Wal-Mart is now focusing on Rudy Giuliani, creating an "online viral video campaign" about the presidential candidate timed to coincide with the anniversary of the Sept. 11 attack.

Robert Greenwald on Thursday launched the first of four short videos about Sept. 11 and the Republican former mayor. The others are planned to launch throughout the month.

Read more here.

Watch the video below.