 Complete the following phrase:  The anti-religious course pursued by Khrushchev was toned down by the BrezhnevKosygin leadership, with most Orthodox churches being staffed by docile clergy often tied to the KGB. State propaganda tended to focus more on promoting scientific atheism rather than active persecution of believers. Nonetheless, minority faiths continued to be harassed relentlessly by the authorities, and particularly troubling to them was the continued resilience of Islam in the Central Asian republics. This was worsened by their geographical proximity to Iran, which fell under control of a fanatical Islamic government 