Dutch Gerard Sprong, lawyer of Argentinian born Dutch pilot Julio Alberto Poch, talks to the press in front of the high court in Madrid on October 6, 2009, after his client's first appearance in court. Poch, pilot for the Dutch airline Transavia, was arrested in Spain on September 23, 2009 over 'death flights' allegedly flown for the Argentinian military dictatorship of the 1970s and 80s. An estimated 30,000 people went missing, presumed dead, during the last Argentine military dictatorship from 1976 to 1983. Among the modes of disappearance were so-called 'death flights', in which political prisoners were drugged and dumped into the sea from planes.