[tacticalogic]

But our congressional reps are still susceptible to (and can do something about) local pressure from their constituents.

I'm skeptical. The beltway bureaucracy is a natural constituent of Democrats and their big-government social engineering ideas. They're well entrenched and well versed in the ways of Washington and can sandbag a investigation into oblivion if they want to, particularly if they get a little help from their liberal/Democratic allies in the legislature. The deck is heavily stacked against any conservative investigation of the actions, policies, and agenda of the bureaucracy.

[GodGunsGuts]

Again, you might be right. But in the meantime, the press that such an investigation would serve to make more and more people aware of the scandal. These things sometimes have a way of snowballing and getting completely out of the hands of big-government bureaucrats. Having said that, I don’t doubt that they would fight such an investigation with everything they have.