nbc's luke russert breaks it all down in today's "hill say." all right, luke, break it down. >> reporter: well, monica, an absolute bombshell dropped yesterday by the house ethics committee when they said they would open up a special subcommittee specially charged with investigating eric massa and his troubles. what are the three big questions here? number one. what did democratic leadership and those close to the party know about eric massa in his situation? when did they know about it, and when did they act on it? there's a lot of questions now arising whether or not the democratic leadership accurately protected massa's staff. that's at the heart of the question here. workers feeling comfortable in their congressional offices. steny hoyer saying yesterday in light of what's happened with massa, there should be changes to how office, senior staffers should be trained every two years so that young staffers never have to feel that they