evidence: Wadi Halfa (Sudan) (AFP) – In the sandy courtyard of a school turned shelter in northern Sudan, two children idly pass a football back and forth. Around them, dozens of adults wait, trapped between a war and a border. There is little else to do in the border town of Wadi Halfa, where a local support group says upwards of 20,000 displaced people live in limbo, unable to cross the northern frontier into Egypt and escape the five-month war between the Sudanese army and paramilitary Rapid Support Forces. [...] Aref al-Zubeir, an architect, has been in Wadi Halfa since the first month of fighting.