Residents stand on the roof of their storm-damaged home as they search their belongings in Henryville, Indiana March 4, 2012. Calm weather gave dazed residents of storm-wracked towns a respite early on Sunday as they dug out from a chain of tornadoes that cut a swath of destruction, killing at least 39 people. REUTERS/John Sommers II (UNITED STATES - Tags: DISASTER ENVIRONMENT)