And why were people still alive and running round the streets of Boston days after the invasion? Why was Miranda just hanging out in her house? Looks like Cruise and family could just as well have stayed where they were if the aliens were that useless at the whole death and destruction thing. I mean they'd obviously been in Boston a while, judging by all the red weeds everywhere, but only decided to kill everybody in places Tom Cruise was. ...understandable, really.