[StormEye]

Congress can pass legislation adding the requirement for
these agencies to (CIA, FBI, IRS, Homeland Security, etc) to
to cooperate in all matters with Congress. In addition,
Congress can modify the charters of these agencies requiring to require them to cooperate. Not to mention impeaching and removing those individuals who don't cooperate.

[Reily]

All that already exists in the original legislation. Why its not being enforced says more about the current AG then anything else.

We effectively haven’t had an AG for 9 years!

[old curmudgeon]

That makes more sense