A view of Moscow's Sheremetyevo airport outside Moscow. Leaker Edward Snowden has been caught in legal limbo in the transit zone of Moscow's Sheremetyevo airport since his arrival from Hong Kong on June 23. U.S. President Obama said Monday during his trip to Africa that every intelligence service in Europe, Asia and elsewhere does its best to understand the world better, and that goes beyond what they read in newspapers or watch on TV. It was an attempt to blunt European reaction to new revelations from National Security Agency leaker Edward Snowden that the U.S. spies on European governments.