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Senate Homeland Security Committee Chairman Joe Lieberman (I-CT) plans to begin a congressional investigation into the shootings at Fort Hood.
Sen. Joe Lieberman (I-CT) said he plans to begin a congressional investigation of the shootings at Fort Hood.
An Army major, Nidal Malik Hasan, is suspected of killing 13 people and wounding 29 others at the Army post in Texas.
Sen. Lieberman, the chairman of the Senate Homeland Security Committee, wants to determine whether the shootings constitute a terrorist attack.
He also wants to see if the Army missed warning signs that Hasan was becoming extreme in his Islamist views.
In an appearance on "Fox News Sunday", Sen. Lieberman said if Hasan was showing signs of becoming an Islamist radical, the Army should have shown "zero tolerance" and discharged him.