U.S. President Barack Obama visited tornado-devastated Moore, Oklahoma, consoling people staggered by the loss of life and property and promising that the government will be behind them "every step of the way." The extraordinarily powerful twister that struck Moore was known as an EF5, ranking it at the top of the enhanced Fujita scale used to measure tornado strength. During a visit on Sunday, the president offered moral and monetary support in the wake of the monstrous tornado that killed 24 people, including 10 children, last Monday afternoon, according to a report of the Associated Press. Standing with Oklahoma Governor Mary Fallin and other state and federal officials, Obama noted the substantial rebuilding job ahead and said "our hearts go out to you." The White House said the Federal Emergency Management Agency has already provided $57 million in rebates and incentives to help build about 12,000 storm shelters in Oklahoma. "