against the central pacific, demanding higher wages and fewer hours and to the whippings endured by white foreman and conceded winning a few concessions. in the american south, postcivil war plantation workers -- excuse me, plantation owners, toyed with the idea of replacing black slavery with chinese labor. the chinese hired interpreters to negotiate their contracts and sued employers if they violated them. they also sued white schools in california and illswhere that refused to admit their children. they helped organize boycotts in china of american products, to demand better treatment of chinese immigrants by american authorities during the exclusion era. and they also pulled together their resources to hire some of the best white lawyers and lobbyists of date to overturn some of the anti-chinese laws. it was strug that would help lay down the foundation of civil rights law to the benefit of human rights activists several decades later. for example, woe vesz hopkins that any law applied in a discriminatory planner whether to u.s. citizens or foreign aliens is unconstitutional. another case uph

republican race for the white house, cnn projects that rick santorum has won the louisiana presidential primary giving the former pennsylvania senator another victory in the south. our tom foreman is in washington. joe johns is in new orleans. crystal wright is a d.c. delegate for newt gingrich also in d.c. and we're monitoring rick santorum in green bay, wisconsin to see if he speaks live in just a moment. let's get to our tom foreman. he's been tracking the exit poll data all evening for us. tom, what can you tell us about rick santorum's win? you have been monitoring all the metrics here. we have seen you standing at the magic walls. so we want to get to our tom foreman and to tell you again, we are monitoring again green bay, wisconsin. rick santorum standing by. tom, what do you know? >> we know one thing that made a difference tonight is the religious vote. if we look at the turnout here, you look at the voters that came out, those born again or evangelical christians, 60% and they went heavily for rick santorum as they have before. 60 to 21% according to the exit polls. look at the ones who weren't born again or evangelical, 41 to 36% for santorum. romney edged him out b

foreman has the evidence on that. >> reporter: you're looking at a youtube video that caused a sensation in sanford, florida, in late 2010. long before the trayvon martin shooting. it shows a young whitean punching a black man in the back of the head outside a bar, sending him to the hospital. and yet the police made no move to arrest the assailant for weeks. why? many believe it was that young man, justin kohlson, was the son of a police officer. he later paid medical bills for the wounded man and ended up with a year's probation. but that did little to ease tension, especially in the african-american community. the nypd is right now collecting allegations of such incidents. beatings and intimidation and worse. few appear to be corroborated at this point, but they clearly resonate with at least part of the community. >> we have heard stories with regards to this department of case after case, where black men have been killed or attacked and people have walked free even though those black men were not armed. >> many of the young people have been shot and killed, some by policemen and when they investigate then they have to get -- it's nothing. it's nothing. it's not due process. it's

foreman has the evidence on that. >> you're looking at a youtube video that caused a sensation in sanford, florida in, late 2010, long before the trayvon martin shooting. it shows a young whiteching a black man in the back of the head outside a bar, sending him to the hospital. and, yet, police made no move to arrest the assailant for weeks until well after the video had sparked a public cry for action. why? many in the city's minority communities believe it was because that young man, justin collison was the son of a police officer. elater paid medical bills for the wounded man and ended up with a year's probation. but that did little to ease tension, especially in the african-american community. the naacp is right now collecting allegations of such incidents, beatings, intimidation and worse. few appear to be corroborated at this point but they clearly resonate with at least part of the community. >> we've heard stories with regards to this department of case after case where black men have been killed or attacked and people have walked free even though those black men were not armed. >> many young people have been shot and killed. some by policemen and when they investiga