Protesters demand more security in Kenya after bus attack More than 100 protesters took part in a demonstration to demand greater security Tuesday Nairobi as thousands of Kenyan civil servants were urged to leave troubled regions hit by a wave of insurgent attacks. The warnings by six unions to members to leave the restive northeast, as well as the protests in Nairobi, followed a weekend attack which saw 28 non-Muslims executed on a bus. Kenya has suffered a series of attacks since invading Somalia in 2011 to strike the Shebab, later joining an African Union force battling the Islamists. IMAGES AND SOUNDBITES