On Tuesday evening, lawmakers released the text of the massive spending bill that Congress must approve to avoid a government shutdown. Buried on page 615 of that 1,603-page piece of legislation is a provision entirely unrelated to government funding that a few lawmakers managed to sneak into the bill without any public debate during last-minute negotiations. It's a Wall Street giveaway—written by Citigroup—that would allow banks to engage in more types of risky trading with taxpayer-backed money.