Yemen slides towards civil warTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoAgata Tuzimek06/04/2011June 4, 2011Anti-government protests have continued in Yemen despite escalating clashes between security forces and dissident tribesmen. President Saleh spoke on state TV vowing revenge after his palace was attacked on Fridayhttps://p.dw.com/p/RRlZAdvertisement