so, thinks like pbi,havioral ins and rti and strategies to help ensure a healthy and safe learning environment for all s in-school suspension will ensure that students can still learn while disciplinary -- while being disciplined for anyinacti important things to showcase. so, civil rights enforcement is a piece of it, as arne said ensuring that folks have the resources to strategies in hand to deal with these very, very local and community and school-level problems is what we're doing now and will continue to do moving forward. > again, thank ross and their helping us all start what i think is an amazingly important national conversation. thanks for >>> this weekend there are two ways to watch the tucson festival of books on book tv. on c-span 2, jeffrey rosen on the history of the supreme court and at 3:00 panels on forensic science and politics at 4:30 and mexico's drug wars and on sunday panels continue starting at 1:00, the environment, the great depression, the american west at 4:00 and at 5:30 studying the brain and bernie madoff at 7:00 and throughout the weekend look for coverage stre

other states are going to be adding that provision as their next step in trying to secure selections. >> ifill: hans from the havior tij foundation ask wendy, thank you both so much. >> woodruff: now, an update on the continued fighting in the african nation of sudan and a well known visitor to that country. last summer, people in south sudan celebrated as they became citizens of the world's newest nation. after decades of internal violence in sudan, the south won its independence in a 2011 referendum. but the south's hard-won freedom hasn't stopped the fighting for oil-rich territory and over ethnic divisions. sudan is a major oil supplier to china and other nations. shortly before the formal break, the sudanese government took military action in the border areas of abyei and south kordofan. that region had been aligned with the south, but now lies north of the new border. fighting there has continued, with growing appeals for world action. actor george clooney is a longtime advocate for peace across sudan. he just returned from there, at a u.s. senate hearing today, clooney described repeated rocket attacks, and

in sunday's shootings. military officials are looking into the personal problems the soldier had with his wife and havior officersossible motives. -- bay area congress people are renewing their call for a quicker withdrawal of troops from afghanistan while the obama administration continues to move towards a combat troop exit by the end of 20 fill 14. democrats including boxer, and lee say it is time to bring america's longest war to a close. senator boxer says it is time for the afghan people to determine what kind of future they want and it must be one in which they take responsibility for their own security >>> republican presidential nomination fight is heading to puerto rico today. santorum was the big winner last night sweeping mississippi and alabama. he failed to gain ground on mitt romney in the delegate count. the pick for the republican nominee for president is still very much up for grabs. >> reporter: rick santorum made it a southern sweep. >> we did it again. [ cheering ] >> reporter: winning alabama and mississippi, santorum rejected the idea that mitt romney will lock up the republican nomination.