days ago at the pentagon. >> shannon: if we talk about 50 plus noted use of some kind of chemical weapons, there is definitely a discrepancy. >> bill: the u.n. has an investigation saying they've used chemical weapons eight times this year alone. the u.n. concluded that already and it is only april. to the other story. might be big developments in the 2010 killing in border patrol agent brian terry. authorities in mexico have made an arrest. terry's death exposed and ended the gun running operation known as fast and furious. here is his brother's reaction to the possibility of this news. >> hopefully it's the start of closure. hopefully it's -- we finally get answers and holding those accountable for the project fast and furious and what was the purpose for it and why these people got killed. >> bill: we're live in l.a.