ANNEMASSE, France (AP) -- Anti-globalization demonstrators blocked a highway to the Group of Eight summit site in Evian on Sunday morning, and riot police fired tear gas to break up the protest. In Switzerland, protesters occupied several bridges. The early morning protests kicked off a day of demonstrations scheduled to coincide with the arrival in Evian of most of the leaders of the world's top seven industrial powers and Russia. Police and soldiers enforced a large security cordon around Evian. Outside Annemasse, the main French town where protesters are allowed to operate, thousands of demonstrators gathered at dawn Sunday on...