Relaxation under "glasnost" resulted in the Communist Party losing its absolute grip on the media. Before long, and much to the embarrassment of the authorities, the media began to expose severe social and economic problems the Soviet government had long denied and actively concealed. Problems receiving increased attention included poor housing, alcoholism, drug abuse, pollution, outdated Stalin-era factories, and petty to large-scale corruption, all of which the official media had ignored. Media reports also exposed crimes committed by Joseph Stalin and the Soviet regime, such as the gulags, his treaty with Adolf Hitler, and the Great Purges, which had been ignored by the official media. Moreover, the ongoing war in Afghanistan, and the mishandling of the 1986 Chernobyl disaster, further damaged the credibility of the Soviet government at a time when dissatisfaction was increasing.