The word had gotten out early that morning. Having spent nearly a month hunkered down at the 11th Regiment, protected by layers of razor wire and thousands of soldiers, Prime Minister Abhisit Vejjajiva had taken enough humiliation. Assembled at two symbolically charged locations in downtown Bangkok — at Saphan Phan Fa and at the Rajprasong intersection, surrounded by some of the world’s most dazzling shopping malls — the Red Shirts had spent weeks force-feeding the hapless Prime Minister repeated samplings of his own medicine. They had defied the Internal Security Act …