obama's decision. plus, he sparked a huge wall street firestorm this week. author michael lewis joins our roundtable to talk about why he thinks the markets are rigged for the benefit of insiders. from nbc news in washington, the world's longest running television program, this is "meet the press" with david gregory. >> we're going to get the latest on the fort hood tragedy in a minute. first a little news. as time is running out, there are some big developments in the search for the black box from that flight 370. for the latest on the search, here's my colleague ian williams in perth, australia this morning. what have you learneded? >> good morning. the search reached a new level of intensity today with ships and aircraft racing to a remote part of the indian ocean where a chinese vessel claims to have detected faint noises which it says are on the same frequency as those emitted by the black box flight recorder of flight 370.