Why are most major banks suspending federal consolidation loan applications?

I am newly out of school and was looking to consolidate my outstanding federal student loans (just unsubsidized and subsidized Stafford Loans), but none of the major banks will accept new loan applications. That is including Sallie Mae, Chase, and Wells Fargo. What other options do I have? I prefer major banks, especially the way are economy is right now. How long would these programs be suspended?