The Libyan government said it has taken over a key oil terminal and would continue eastward to Benghazi  – the declared capitol for rebel groups. The takeover of Brega came as world leaders continue to debate the merits of a no-fly zone. On Saturday, the Arab League endorsed the idea. But without foreign intervention, what will happen in the rebellion in Libya fails? We talk with Professor George Joffe, an expert on North Africa at Cambridge University.