"The increasingly heated fight over health-care legislation is saturating the summer airwaves, with groups on all sides of the debate pouring tens of millions of dollars into advertising campaigns designed to push the cause of reform forward, slow it down or stop it in its tracks," the Washington Post reports. So far, drug makers, labor groups, Democrats and Republicans - among others - have spent $52 million to finance the ad campaigns, a heady start that could lead to a "record-breaking legislative battle."