Modern terrorism sprang from the unstable political and social climate of the 1960s when colonialism finally collapsed. The event that is considered the beginning of modern terrorism was the hijacking of one of Israel’s El Al passenger jets in Rome on 23 July 1968 by the Popular Front for the Liberation of Palestine. Almost instantly terrorist groups from around the world gained international attention. In their early years terrorists robbed banks and kidnapped people for ransom to obtain funds. Although such methods are still used by terrorists in the Philippines, Columbia and elsewhere, modern terrorist groups are well-funded and well-organized across the world, operating as foreign fighters. They find harbor and support in countries such as Iran, Iraq, Lebanon, Libya, Pakistan, Sudan and Syria and often use forged or stolen passports to reach their target destinations. There is thought to be more than 500 terrorist networks operating around the world.