Colbert before Congress

In what may be his greatest feat since the White House Correspondents dinner of a few years back, Stephen Colbert, once again, publicly and boldly calls our government out:

See the whole story at Talking Points Memo

What one must wonder, however, is whether such a satirical assault on congress has any kind of positive effect? Any thoughts from my readers?

UPDATE: Colbert has contexuaized the issue of immigration and migrant farm workers, on which he testified, on his show. Check out those videos here and here.

UPDATE 2: Colbert did apparently briefly come out of Character, Politico shared that video. It is very moving and sheds new light on his testimony.

Here it is (do watch):