More families building their own tornado shelters

http://hosted.ap.org/dynamic/stories/U/US_TORNADOES_SAFE_ROOMS?SITE=AP&SECTION=HOME&TEMPLATE=DEFAULT&CTIME=2012-04-29-16-06-16

When deadly twisters chewed through the South and Midwest in 2011, thousands of people in the killers' paths had nowhere to hide. Now many of those families are taking an unusual extra step to be ready next time: adding tornado shelters to their homes. A year after the storms, sales of small residential shelters known as safe rooms are surging across much of the nation, especially in hard-hit communities such as Montgomery and Tuscaloosa in Alabama and in Joplin, Mo., where twisters laid waste to entire neighborhoods.