Ali Mohamed, while still an instructor at Fort Bragg, North Carolina (see 1986), frequently spends his weekends traveling to meet with Islamic activists at the Al-Kifah Refugee Center in Brooklyn. [Miller, Stone, and Mitchell, 2002, pp. 143-144] This center is the Brooklyn branch office of Maktab al-Khidamat (MAK)/Al-Kifah, which is a charity front in Pakistan closely tied to bin Laden and his mentor Abdullah Azzam. It also has ties to the CIA (see 1986-1993). Mohamed teaches the Islamic activists survival techniques, map reading and how to recognize tanks and other Soviet weapons. He frequently stays at the home of El-Sayyid Nosair (see November 5, 1990). In July 1989, the FBI monitors him teaching Nosair and some of the future members of the 1993 World Trade Center bomb plot how to shoot weapons (see July 1989). Towards the end of this period he informs his superiors that he has renewed his association with Sheikh Omar Abdul-Rahman. [New York Times, 12/1/1998; Miller, Stone, and Mitchell, 2002, pp. 143-144] Mohamed will move to Brooklyn in May 1990 while also keeping a residence in Santa Clara, California. His connections to the Islamist network develop rapidly from this point on. [New York Times, 12/1/1998; Miller, Stone, and Mitchell, 2002, pp. 144]