A five-and-a-half billion dollar health and human services spending bill moving through the Minnesota House is being described as an assault on abortion by supporters of legalized abortion. The bill bans a late-term procedure sometimes called a partial birth abortion, and requires a 24-hour waiting period before a woman could get an abortion. The move sets the stage for a battle with the Senate and the Governor, and a possible repeat of last year's showdown that nearly forced a special session.