In the private sector, you can get laid off/fired in most states for no reason. You can get pay cuts for no reason. You can get forced furloughs without any recourse (happens to me usually around Christmas). So there are numerous risks one must take and accept to have an at-will employment in the private sector.In the public sector, there are MUCH fewer risks, but unfortunately, federal budgets is the big one. That can and does happen from time to time, but fortunately, they will eventually get paid (unless their dept is cut).