Speaking in a clear, forceful voice, former congresswoman Gabrielle Giffords this morning implored the U.S. Senate Judiciary Committee to do something about gun violence.

"Speaking is difficult but I need to say something important: Violence is a big problem. Too many children are dying. Too many children. We must do something. It will be hard, but the time is now. You must act. Be bold, be courageous, Americans are counting on you. Thank you," Giffords said.

She conveyed determination.

Giffords, 42, looks and sounds better each time she ventures into the public. Her inflection improves, she says longer sentences and she puts more and more emotion into her words. From a health perspective, she's proof that continuous rehabilitation can and does help people with traumatic brain injuries.

On Jan. 8, 2011 Giffords was shot clear through the left side of her brain. She has progressed from being unable to walk or talk to her current condition. While she is still partially paralyzed, has lost much of her vision, and still struggles to find the right words, she has made continuous improvements in the last two years.

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