PBS News Hour S41 E40 February 25, 2016

Thursday on the NewsHour, Republican presidential candidates prepare for the 10th GOP debate in Houston. Also: Doubts swirl about the looming Syrian ceasefire agreement, how economic fears feed into populist politics, the mother of a Columbine shooter writes on her son, Tijuana police step up efforts against the homeless, a former model’s plan to diversify fashion and why Black Girl Magic matters.