Powerful moment at today's Senate hearing on gun violence:
In remarks kicking off today's Senate Judiciary Committee hearing on gun violence, former Rep. Gabrielle Giffords, D-Ariz., made a defiant call for Congress to "be bold" and "act" on gun violence.
"Too many children are dying," she said. "We must do something."
Giffords, who survived a gunshot to the head two years ago during an assassination attempt that left six people dead, read slowly but forcefully from prepared remarks, and acknowledged that "speaking is difficult."
"But I need to say something important. Violence is a big problem," she said. "It will be hard. But the time is now. You must act. Be bold. Be courageous. Americans are counting on you."
Meanwhile, while the Senate listened to testimony, there was another mass shooting at a Phoenix, Arizona office complex. One person was killed.