 Complete the following phrase:  Within the politburo Oelßner had emerged as a critic of plans for the complete collectivisation of agriculture which came to enjoy the backing of the Ulbricht wing after 1956. In the Soviet Union, following the death of Stalin and the secret speech delivered by Nikita Khrushchev in February 1956 discussion of which was strongly discouraged within East German government circles, a view was developing that the communist regimes longer-term survival might best be secured not simply by repression, fear and rigged election results, but by seeking to win the genuine support of the population. Karl Schirdewan, another of the 12 or 14 members of the East German politburo, was actually present when Khrushchev delivered his speech at the 