action on a second financial bailout for Greece has increased dramatically. And that means ideas which had been rejected as politically

untenable

are now up for discussion again. One of them is a selective default in Greece, meaning some bond holders, including banks and other private institutions, wouldn't get all their money back.

The Nigerian authorities have closed a university in the northern city of Maiduguri because of continued attacks in the region by the Islamist sect Boko Haram. There are reports that the sect, which is

opposed to

Western education, threatened to attack the university, but the sect has denied this. Students are packing up and joining thousands of other people fleeing the area, as Jonah Fisher reports.

Motorbikes have been banned; the university has closed, and each day in Maiduguri brings reports of new clashes between the military and Islamists from Boko Haram. Tuesday was no different; at least three people died after an improvised bomb targeted a patrol and a shoot-out followed. But there's no need to panic, the military force sent to

restore

order says. In a statement, they assured people of their security, told them to stay and said there would be no hiding place for Boko Haram militants.

The United States has promised to work with the authorities in Afghanistan as they investigate the murder of a half-brother of President Hamid Karzai. A White House spokesman said Washington condemned the killing of Ahmad Wali Karzai, who was shot dead by his long-serving head of security. He was