A Russian surveillance plane that was flying so low over U.S. capital and created a lot of buzz in the country, was actually authorized by the U.S. government under a long-standing global treaty which is known as the Open Skies Treaty.
It drew speculations on the internet that Russia was probably ready for a war with the United States of America.
Formed in 2002, the treaty allows unarmed observation flights over the entire territory of all 34 member nations among which Russia and U.S are signatories.
The aim of the so-called Open Skies Treaty is to foster transparency about military activities and reduce mistrust as well as misunderstandings. It is also aimed at monitoring arms control in other countries.
However, the flight was monitored by the U.S. Capitol Police command center. After each flight, the host nation gets a copy of any imagery taken by the observation aircraft.