The apologies are out of the way and the offense forgiven. But the underlying policy argument remains, after a Congressman drew fire from both sides of the aisle for his outburst during President Obama's speech Wednesday.

Rep. Joe Wilson, R-S.C., was criticized for interrupting Obama's address to a joint session of Congress to accuse the president of lying about his health care reform plan prohibiting coverage for illegal immigrants. Wilson quickly apologized, and the White House accepted the apology.

Wilson apologized again Thursday morning, though he also says a massive loophole could wind up in the health care bill: no requirement to prove citizenship for health care coverage.

Among three House committees to pass bills for health reform, only one expressly bans federal funding for proving health coverage to illegal immigrants...