June 5, 2013 7:40 am Storm Chasers' Deaths Raise Questions The deaths of three respected tornado researchers near Oklahoma City have renewed questions about whether the risk of heading into violent storms in ‘Tornado Alley’ is too great. US & World Videos 10:03 Kelly Clarkson meets high school basketball phenoms, the Jordan sisters 3:29 Woman accidentally invites entire phone contact list to daughter's first birthday party 1:02 FBI warns of threats to LGBTQ Pride Month events in the US 1:38 John Krasinski says George Clooney inspired him to be a director 17:01 Chris Pine and Kelly Clarkson answer personal questions in ‘saucy' new game