Why aren't they allowed to buy back?
For the same reason they weren't allowed to reject the money, as some did try to do.
It's all about control.
You say that like it's a bad thing...
Obviously they are incapable of self governing as evidenced by their massive failure.
Who and what are you talking about?
There were some business entities who did not want or need the Gov't's help, but were made/threatened to take the money.
For example?
This was discussed on here last week:
http://www.bizjournals.com/stlouis/stories/2009/02/16/daily17.htmlThe U.S. Treasury told, not asked, U.S. Bank to participate in the program
Richard Davis resigned, on his own, last week.