Congressman Rangel says he will introduce legislation to bring back a military draft. I assume this is just to score political points (e.g., remind voters that many Republicans did not serve), and not something the Dems are taking seriously. It doesn't seem like it would have much support.
On the other hand, the linked article does note that "Rangel said his legislation on the draft would also offer the alternative of a couple of years of public service with educational benefits." Since it's not just about the military, they could spin it as a more general public service plan, which might help get some broader support.
For me, that last bit makes it even worse. I can see an argument for forced military service in an emergency, but forced public service sound like a colossal waste of time and a sure way to make people like their country less. But he wasn't really expecting my vote anyway.
UPDATE: The Democratic leadership has said this will not happen, which is a smart move on their part.