Even though the country avoided a serious fall, the travel industry might be headed for the brink after Washington passed the "fiscal cliff" deal last week, according to the U.S. Travel Association. U.S. Travel, a national organization that lobbies on behalf of travel- and tourism-dependent businesses, warned that the new legislation could impact discretionary spending and doesn't solve spending cuts that will affect federal agencies like the Department of Homeland Security and the U.S. Customs and Border Protection. Those cuts could make multi-hour lines standard at large airports as federal officials cope with fewer resources, U.S. Travel predicted. While the …