Yemen's strongman President Ali Abdullah Saleh is scheduled to sign the instrument of his resignation today, agreeing to leave power in 30 days in exchange for immunity from prosecution.Reuters: Yemen's President Ali Abdullah Saleh was due to sign a pact on Sunday to become the third Arab leader ousted this year by protests, under stronger diplomatic pressure this time after twice backing out at the last minute.Hundreds of Saleh loyalists blocked roads to protest against the deal, piling stones in streets as makeshift barriers and blocking cars, while across town anti-Saleh protests that have continued for three months drew tens of thousands of people.More than 170 protesters have been killed in a crackdown on demonstrations demanding an end to Saleh's 30 year rule, part of the wave of uprisings across North Africa and the Middle East that swept aside the leaders of Tunisia and Egypt.Gulf neighbors, anxious to prevent the Arab world's poorest country from slipping into anarchy, have...(Read Full Post)