 The ongoing immigration restrictions of the British White Paper of 1939 meant that such a plan was not able to be put into immediate effect.Upon the establishment of Israel, Ben Gurion's government presented the Knesset with a new plan - to double the population of 600,000 within 4 years.Israeli historian Devorah Hacohen describes the opposition against this immigration policy within the new Israeli government, such as those who argued that there was "no justification for organizing large-scale emigration among Jews whose lives were not in danger, particularly when the desire and motivation were not their own" as well as those who argued that the absorption process caused "undue hardship".