revolution, urging Iranians not to compromise and ordering work stoppages against the regime. During the last few months of his exile, Khomeini received a constant stream of reporters, supporters, and notables, eager to hear the spiritual leader of the revolution. While in exile, Khomeini developed what historian Ervand Abrahamian described as a "populist clerical version of Shii Islam". Khomeini modified previous Shii interpretations of Islam in a number of ways that included aggressive approaches to espousing the general interests of the mostazafin, forcefully arguing that the clergy's sacred duty was to take over the state so that it could implement shari'a, and exhorting followers to protest. Despite their ideological differences, Khomeini also allied with the People's Mujahedin of Iran during the early 1970s and started funding their armed operations against the Shah. Khomeini's contact with the US According to the BBC, Khomeini's contact with the US "is part of a trove of newly declassified US government documents—diplomatic cables, policy memos, meeting records". The documents suggest that the Carter administration helped Khomeini return to Iran by preventing the Iranian army from launching a military coup, and that Khomeini told an American in France to convey a message to Washington that "There should be no fear about oil. It is not true that we wouldn't sell to the US." According to a 1980 CIA study, "in November 1963 Ayatollah Khomeini sent a message to the United States Government through [Tehran University professor] Haj Mirza Khalil Kamarei", where he expressed "that he was not opposed to American interests in Iran", "on the contrary, he thought the American presence was necessary as a counterbalance to Soviet and possibly British influence". Supreme leader Ayatollah Ali Khamenei denied the report, and described the documents as "fabricated". Other Iranian politicians including Ebrahim Yazdi (Khomeini's spokesman and adviser at the time of the revolution) have questioned the BBC's documents. The Guardian wrote that it "did not have access to the newly declassified documents and was not able to independently verify them," however it did confirm Khomeini's contact with the Kennedy administration and support for US interest in Iran particularly oil through a CIA analysis report titled "Islam in Iran". According to the BBC, "these document show that in his long quest for power, he [Khomeini] was tactically flexible; he played the moderate even pro-American card to take control but once change had come he put in place an