Um, because it was illegal?

Dick Cheney, meet Oliver North. Donald Rumsfeld, meet Caspar Weinberger. George W. Bush, meet Ronald Reagan — he who, knowingly or not, presided over a rogue operation that resulted in 11 criminal convictions in the Iran-Contra scandal. Eric Holder, meet Elliott Richardson. Richardson was the attorney general who refused to fire Watergate prosecutor Archibald Cox…