Lebanese security forces have enforced a security perimeter in two downtown Beirut city squares, to prevent Hezbollah and Amal supporters from entering, after heavy clashes with peace protestors on Wednesday night. Dozens of supporters of the two Shia-majority political movements tried to break into camps set up in Riad Al-Solh and Martyrs' squares, in which non-violent activists had gathered, and pelted them with stones. Riot police charged at Amal activists ...