Russian human rights group reprensentative speaks to journalists before meeting Edward Snowden at Sheremetyevo airport in Mosow July 12, 2013. Former intelligence agency contractor Edward Snowden asked to meet human rights groups at the Moscow airport on Friday to discuss what he called "threatening behaviour" by the United States to prevent him gaining asylum. Reznik is not representing Snowden or the parties involved. [Photo/Xinhua]

Russian political scientist Vyacheslav Nikonov (C) speaks to journalists after arriving at Sheremetyevo airport in Moscow July 12, 2013. Former intelligence agency contractor Edward Snowden asked to meet human rights groups at a Moscow airport on Friday to discuss what he called threatening and illegal behaviour by the United States to prevent him gaining asylum. Nikonov is one of the people Snowden asked to see. [Photo/Agencies]