What Are You Hiding, George?

AP (07.09.07):

"President Bush invoked executive privilege Monday to deny requests by Congress for testimony from two former aides about the firings of federal prosecutors.

The White House, however, did offer again to make former counsel Harriet Miers and one-time political director Sara Taylor available for private, off-the-record interviews."

Bush Denies Congress Access to Aides

What don't you want us to find out, George?