Debby Keel holds her grandchild, Kennedy, as Texas Highway Patrol officers record the entry of residents who are allowed to return to their homes near the site of the April 17 fertilizer plant blast in West, Texas. Frederic J. Brown/AFP/Getty Images hide caption

itoggle caption Frederic J. Brown/AFP/Getty Images

A vehicle is seen near the remains of a fertilizer plant burning after an explosion in West, Texas, near Waco. The explosion ripped through the fertilizer plant late Wednesday. Mike Stone/Reuters /Landov hide caption

itoggle caption Mike Stone/Reuters /Landov