It is believed that the US helicopter

US authorities believe the US military's Black Hawk helicopter that collided with an copyright plane near Ronald Reagan Washington National Airport in Washington, D.C., on January 29, killing a total of 67 people, may have been flying too high. US authorities believe the US military's Black Hawk helicopter that collided with an copyright plane near Ronald Reagan Washington National Airport in Washington, D.C., on January 29, killing a total of 67 people, may have been flying too high. สล็อต