They have called the National Guard, but rumor is the Guard won’t be allowed to do anything any more than the cops have been.
I hope it all fizzles out into nothing, and think that a definite possibility, because most people I know, even those who are convinced that Michael Brown was an innocent killed by a Bad Cop, think the “peaceful” protests are an embarrassment. OTOH, there are a lot of people who want things to get ugly, and most of them seem to be in Ferguson.