hamed argues that Plaintiffs have failed to demonstrate that he is "present" in the United States for general personal jurisdiction purposes. See Helicopteros Nacionales de Colombia, S.A. v. Hall, 466 U.S. 408, 411-12, 416-18, 104 S.Ct. 1868, 80 L.Ed.2d 404 (1984); Borsch v. Drexel Firestone, Inc., 519 F.2d 974, 998 (2c1 Cir.