WMPT PBS NewsHour April 10, 2012
>> reporter: california's community colleges serve 2.6 million students. it's the largest higher education system in the entire country. but its mission may be changing. >> woodruff: and ray suarez talks with the authors of "tinderbox," a new take on the history and spread of aids. >> the roots of colonialism, it's unlikely that the epidemic we know today would have come out in the way we've seen it. >> brown: that's all ahead on tonight's newshour. major funding for the pbs newshour has been provided by: moving our economy for 160 years. bnsf, the engine that connects us. >> citi tu...