possibly guam. given the placement on the eastern shore the trajectory of these missiles would likely pass over japan where missile defenses are in place. they want everyone to become so rattled and scared that the world appeases and accepts north korea with a new status quo, with north korea as a nuclear weapons state, sanctions are lifted and we begin a kind of normal relationship with a new beginning. but that s not happening. reporter: in fact, a launch would only make things worse and the risk of mistakes causing serious damage either on purpose or because of the technical failure could mean a robust response from the u.s. and its allies. u.s. officials believe the launch could take place any time and with little warning because it is very difficult to track mobile missiles. josh and robin. all right there, martha, thank you. volatile saber-rattling continues. and we re going to turn now to the death of roger ebert yesterday at the age of 70. he was among the c