They have no integrity, nor are they interested in "trafficked underage girls"; that's merely how they sell their campaign against voluntary adult prostitutes to well-meaning Americans who don't know any better. If they really wanted to "rescue sex slaves" they would accept the help regularly offered by sex worker rights groups, but they don't.
Maggie McNeill debunks the "teenage sex slave" boondoggle:
http://maggiemcneill.wordpress.com/2...24/numerology/
and the "Super Bowl as magnet for prostitution" myth:
http://maggiemcneill.wordpress.com/2...80%99t-buy-it/