up until 1996 it was the base where 0sama bin laden and the base where 0sama bin laden and the al-qaedae they moved to afghanistan were based. egypt has a vested interest in sudan being stable. they are allies against ethiopia. whatever happens in sudan will inevitably spill out, or risk spilling out, into neighbouring countries. that is why the african union and the arab league are trying really hard right now to try and dampen down this fire and find a compromise to stop the violence. frank, thank you. the bbc�*s security correspondent frank gardner. in the us at least four people have been killed in a shooting at a teenage birthday party in the american state of alabama. it happened in the town of dadeville. at least 20 people were shot and wounded, most of them teenagers. at this stage there is no official confirmation about what led to the shooting, but there seems to have been some sort of altercation that then escalated. the us presidentjoe biden has been briefed on the shooting. phil dowdell has been named by local media as one of the victims. phil was a senior in high school an