President Obama has decided against a one-on-one meeting with Russian President Vladimir Putin in September. The two leaders had tentatively planned to get together for talks in Moscow after they attend the G-20 meeting in St. Petersburg. A key reason that Washington scuttled the summit was Putin's decision to grant temporary asylum to National Security Agency leaker Edward Snowden. American authorities want him returned to the U.S. to stand trial. A White House statement acknowledged that the U.S. and Russia have made progress on some issues, but not so much on others. In a statement, President Obama said "given our lack of progress on issues such as missile defense and arms control, trade and commercial relations, global security issues, and human rights and civil society in the last twelve months, we have informed the Russian Government that we believe it would be more constructive to postpone the summit until we have more results from our shared agenda."