Sdrs Discrepancy News Today

Serious questions surfacing this morning. that deadly u.s. destroyer collision. japans coast guard now saying it took nearly an hour before the crew of the japanese ship involved in the collision actually reported the deadly incident. thats not what the u.s. says. lets get right to cnns al aalexandra field. what do we know about the sdr s discrepancy over the events? >> reporter: it will take months, even years before we find out what caused the collision between the u.s. guided missile destroye...