Philippine National Police SWAT members offer flowers for victims during a "Day of Mourning and Prayer" Friday Jan. 28, 2011, at the site of a bus explosion four days ago along a busy EDSA highway at the financial district of Makati city, southeast of Manila, Philippines. Five people were killed and 13 others wounded in the bus explosion Tuesday, the bloodiest attack in the heart of the capital in six years. (AP Photo/Bullit Marquez)