Swiffer Per News Today

U o no system is perfect. and this one is very good again at criminal investigation after the fact. but prediction is another matter. >> it is entirely a different matter. thank you to nbcs michael isikoff up in boston. michael, well be coming to you throughout the week, i hope. coming up, to act or not to act? well look at the delicate foreign policy decision hanging in the balance amid growing concerns that the syrian government has gone over the red line when nbcs richard engel joins us nex...