
A woman walks through a devastated area following a series of massive tornados in Tuscaloosa, Alabama, USA, on 29 April 2011. Nearly 300 people were killed by the powerful storms that hit the area on 27 April 2011 and US President Obama is scheduled to visit the area on 29 April 2011. EPA/JUSTIN LANE

John Owen (R) and his family cart some his daughter's belongings through the street after her home was destroyed in a series of massive tornados in Tuscaloosa, Alabama, USA, on 29 April 2011. Nearly 300 people were killed by the powerful storms that hit the area on 27 April 2011 and US President Obama is scheduled to visit the area on 29 April 2011. EPA/JUSTIN LANE

A police officer looks in the back of a destroyed car following a series of massive tornados in Tuscaloosa, Alabama, USA, on 29 April 2011. Nearly 300 people were killed by the powerful storms that hit the area on 27 April 2011 and US President Obama is scheduled to visit the area on 29 April 2011. EPA/JUSTIN LANE

Robert Sparks (R) and Rickie McGee, of Tuscaloosa, looks through the rubble of McGee's home for car keys following a series of massive tornados in Tuscaloosa, Alabama, USA, on 29 April 2011. Nearly 300 people were killed by the powerful storms that hit the area on 27 April 2011 and US President Obama is scheduled to visit the area on 29 April 2011. EPA/JUSTIN LANE

A woman walks through a devastated area following a series of massive tornados in Tuscaloosa, Alabama, USA, on 29 April 2011. Nearly 300 people were killed by the powerful storms that hit the area on 27 April 2011 and US President Obama is scheduled to visit the area on 29 April 2011. EPA/JUSTIN LANE

A view of the interior of destroyed church following a series of massive tornados in Tuscaloosa, Alabama, USA, on 29 April 2011. Nearly 300 people were killed by the powerful storms that hit the area on 27 April 2011 and US President Obama is scheduled to visit the area on 29 April 2011. EPA/JUSTIN LANE

A woman walks through a devastated area following a series of massive tornados in Tuscaloosa, Alabama, USA, on 29 April 2011. Nearly 300 people were killed by the powerful storms that hit the area on 27 April 2011 and US President Obama is scheduled to visit the area on 29 April 2011. EPA/JUSTIN LANE

Rickie McGee, of Tuscaloosa, looks through the rubble of his home for his car keys following a series of massive tornados in Tuscaloosa, Alabama, USA, on 29 April 2011. Nearly 300 people were killed by the powerful storms that hit the area on 27 April 2011 and US President Obama is scheduled to visit the area on 29 April 2011. EPA/JUSTIN LANE