Russian Prime Minister Vladimir Putin walks near a new Russian fighter jet Sukhoi T-50, after its flight in Zhukovksy, outside Moscow on June 17, 2010. AFP PHOTO / RIA NOVOSTI / POOL / ALEXEY DRUZHININ (Photo credit should read ALEXEY DRUZHININ/AFP/Getty Images)
HAMPTON, VA - JUNE 15: Democratic presidential candidate Hillary Clinton participates in a round table conversation on national security at the Virginia Air and Space Center June 15, 2016 in Hampton, Virginia. Following the nation's final presidential primary in the District of Columbia on Tuesday, it is clear that Clinton has won enough votes to be her party's standard bearer in this fall's election. (Photo by Chip Somodevilla/Getty Images)
Mourners hold an LED sign reading "Dallas To Orlando" as they march during a vigil in Dallas, Texas, on June 12, 2016, for victims of the attack at Orlando's Pulse Nightclub in Orlando, Florida.
Fifty people died when a gunman allegedly inspired by the Islamic State group opened fire inside a gay nightclub in Florida, in the worst terror attack on US soil since September 11, 2001. / AFP / Laura Buckman (Photo credit should read LAURA BUCKMAN/AFP/Getty Images)
19 Apr 1991: Muhammad Ali looks on during a bout between Evander Holyfield and George Foreman at Caesar''s Palace in Las Vegas, Nevada. Mandatory Credit: Barry Jarvinan /Allsport
