By Robert F. Worth:  A more complex Yemen was briefly visible on Western TV screens during the spring of 2011, when a diverse protest movement gathered against Ali Abdullah Saleh, Yemen’s longtime ruler. It seemed for a moment that he would join Egypt’s Hosni Mubarak and Tunisia’s Zine el-Abidine Ben Ali in sudden and ignominious retirement. But Saleh was too clever, and the nascent revolution quickly collapsed into a muddle that left no one happy.  Read More…