The most dangerous terror groups are more resilient, creative and technologically savvy than ever, despite being driven further underground by the global security crackdown since Sept. 11, 2001, Indonesia’s leader warned Monday. “Terrorists keep changing their strategies and tactics,” Susilo Bambang Yudhoyono, the president of the world’s most populous Islamic nation, in a speech to open an international counterterrorism conference. To keep up, governments must anticipate these changes and adapt to them before the terrorists have a chance to strike, he said. If the terrorists “try to think one step ahead, we must think two or three steps ahead,” Yudhoyono told the conference in Jakarta, which brought together officials and experts from more than 40 nations. Full Story