On a playground in Watts, surrounded by barbed wire, kids are playing and laughing. They are immersed in the joy of the moment, insulated from what is going on around them. They are part of a program called Urban Compass. Its mission is going into the grittiest, low-income Los Angeles neighborhoods to keep kids in school and out of gangs, typically the only other viable alternative for survival. Urban Compass is celebrating its tenth anniversary in 2015. This year is also the 50th anniversary of the Watts riots, which were caused by high unemployment, below-average schools, and inferior living conditions, according to a report published by a commission that investigated…