Schoolchildren from the Lang'ata road primary flee tear gas on January 19, 2015 in Nairobi after breaking a wall illegally erected around it and being dispersed by police attempting to break up their demonstration against the removal of their school's playground, which was allegedly grabbed by a powerful politician. Children were in the front line of people pulling down a wall erected around the playground.                      AFP PHOTO / TONY KARUMBA        (Photo credit should read TONY KARUMBA/AFP/Getty Images)