ulgaria and the Philippines insisted Friday they would not be cowed by terrorists after insurgents captured and threatened to kill their nationals in Iraq, the latest kidnappings in the country. In what has become familiar imagery, video broadcast earlier in the day on Al-Jazeera showed two Bulgarians before three masked men, two carrying rifles and one carrying a rocket-propelled grenade launcher. A videotape of the Filipino was shown Wednesday, also on the Arab TV network. A group loyal to insurgency leader Abu Musab al-Zarqawi threatened to kill the Bulgarians if the U.S. military did not release all Iraqi detainees within 24 hours — a deadline that expires later Friday. The Philippines was told to withdraw its troops within three days, a deadline that expires over the weekend.Full Story