Mexican officials embroiled in increasingly violent clashes with drug dealers . They steal some drugs from stores along the border , congresswoman says . House hearing focuses on security on the border , and spread of drugs . President Obama says he would consider sending in National Guard , but not right now .
Mexican officials embroiled in increasingly violent clashes with drug cartels . Cartels getting some weapons from stores along the border , congresswoman says . House hearing focuses on security on the border , preventing spread of violence . President Obama says he 'd consider sending in National Guard , but not right now .