GAZA (Reuters) - Two kidnapped Fox journalists appeared on a new videotape released by their captors on Sunday in the Gaza Strip, in which the reporters said they had converted to Islam, the Fox News Channel said. Palestinian Interior Minister Saeed Seyam said efforts were under way to secure within hours the release of Fox correspondent Steve Centanni, a 60-year-old American, and New Zealand-born cameraman Olaf Wiig, 36. Both journalists appeared to be in good health in the new video. They were seized on August 14. They were shown separately sitting cross-legged, reading a statement which Fox said was an...