All of the employers are taking advantage of it, except for the government of course. Contractors and consulting firms are another story. Most figure that you're not going to find another job opportunity easily.
By DoD, I mean contractors. I don't work for the gov't. I don't think I would want to.
Contractors are not hiring right now, even the ones that have money and those that have been awarded new contracts are not hiring many. What more are doing are pulling at risk contract people into these jobs at either the same pay or a bit of a paycut. If you are in danger of losing your job, most people would rather make 90% of what they are currently making than to make no money at all.
Our company is killing our poor admin assistant. She is now covering our dept, which was awarded a new contract to go along with the current task order. Then Business Development also pulls her down for work instead of hiring someone full time. No raise, no promotion, but more than twice the work. She is also salary so it doesn't matter if she works 80 hours or 40 hours, she makes the same.