Protesters in Egypt are begging U.S. President Barack Obama to intervene and save them from a "bloodbath," according to CNN reporter Ben Wedeman who has been live Tweeting from Tahrir Square in Cairo today.Pro-Mubarak forces have descended on Tahrir square today ared with heavy sticks and knives, according to reports, and provoked fierce fighting between the two sides. Rocks, other heavy objects and Molotov cocktails have been hurled across the square and from above from buildings overlooking the square. Wedeman describes the situation in Tahrir Square as "very ugly" and expresses fear the Mubarak government will repeat the Communist Chinese...