A controversy surrounding the 1978 World Cup was that Argentina had undergone a military coup of its democratic government only two years before the cup, which installed a dictatorship known as the National Reorganization Process. Less than a year before the World Cup, in September 1977, Interior Minister General Albano Harguindeguy, stated that 5,618 people had recently disappeared. The infamous Higher School of Mechanics of the Navy (known by its acronym ESMA) held concentration camp prisoners of the Dirty War and those held captive reportedly could hear the roars of the crowd during matches held at River Plate's Monumental Stadium, located only a mile away; prompting echoes of Hitler's and Mussolini's alleged political manipulation of sports during the 1936 Berlin Olympics and 1934 FIFA World Cup. Because of the political turmoil, some countries, most notably the Netherlands, considered publicly whether they should participate in the event. Despite this, all teams eventually took part without restrictions. However, most notably, Dutch star Johan Cruyff, who won the Golden Ball in the previous 1974 FIFA World Cup, refused to take part in the 1978 World Cup, even though he earlier participated in the 1978 FIFA World Cup qualification. Allegations that Cruyff refused to participate because of political convictions were denied by him 30 years later- he and his family had been the victims of a kidnap attempt a few months before the tournament. Several criminals entered his house in Barcelona at night and tied him and his family up at gunpoint. More controversy surrounded the host, Argentina, as all of their games in the first round kicked off at night, giving the Argentines the advantage of knowing where they stood in the group. This issue would arise again in Spain 1982, which prompted FIFA to change the rules so that the final two group games in subsequent World Cups would be played simultaneously.