Riot policemen stand guard while supporters of former Premier Thaksin Shinawatra gather outside the U.S. embassy in Bangkok March 17, 2010. Despite the fourth day of street rallies in Bangkok, Thai stocks hit a 19-month high and the baht currency raced to its strongest level in 22 months. Investors have been emboldened by the lack of violence and the view that Prime Minister Abhisit Vejjajiva would survive the crisis. (Reuters)

Surrounded by police, anti-government leader Jatuporn Promporn enters the U.S. Embassy Wednesday, March 17, 2010, in Bangkok, Thailand. Earlier in the day red-shirted protesters hurled plastic bags filled with gallons (liters) of their own blood into the residential compound of the Thai Prime Minister Abhisit Vejjajiva's Wednesday, hoping their shock tactics will bring down his government. (AP)