Worth watching the whole video.. read the description for a bit more context on her and her background and you'll see how legit she is on top of just being bad ass.
Video:
https://www.youtube.com/watch?feature=player_embedded&v=oBRXfPaoUXQ
Wikipedia Page on Tammy Duckworth:
https://en.wikipedia.org/wiki/Tammy_Duckworth
Video:
https://www.youtube.com/watch?feature=player_embedded&v=oBRXfPaoUXQ
Wikipedia Page on Tammy Duckworth:
https://en.wikipedia.org/wiki/Tammy_Duckworth