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Police officers point their weapons at demonstrators protesting against the shooting death of Michael Brown in Ferguson, Missouri...Police officers point their weapons at demonstrators protesting against the shooting death of Michael Brown in Ferguson, Missouri August 18, 2014. Police fired tear gas and stun grenades at protesters on Monday after days of unrest sparked by the fatal shooting of unarmed black teenager Michael Brown by a white policeman. REUTERS/Joshua Lott (UNITED STATES - Tags: CRIME LAW CIVIL UNREST)

Joshua Lott/Reuters

Police fired tear gas and stun grenades at protesters on Monday in Ferguson, Missouri, after days of unrest sparked by the fatal shooting of unarmed black teenager Michael Brown by a white policeman Read more

Outrage In Missouri Town After Police Shooting Of 18-Yr-Old Man...FERGUSON, MO - AUGUST 17:  Tear gas reigns down on a woman standing with her arms raised in the street after a demonstration over the killing of teenager Michael Brown by a Ferguson police on August 17, 2014 in Ferguson, Missouri. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his August 9, death.  (Photo by Scott Olson/Getty Images)

Scott Olson/Getty

Tear gas rains down on a woman standing with her arms raised after a demonstration over the killing of teenager Michael Brown by a Ferguson policeman in MissouriRead more

REUTERS PICTURE HIGHLIGHT...ATTENTION EDITORS - REUTERS PICTURE HIGHLIGHT TRANSMITTED BY 0131 GMT ON JULY 3, 2014    LJJ015  Lightning strikes One World Trade Center in Manhattan as the sun sets behind the city after a summer storm in New York.  REUTERS/Lucas Jackson     REUTERS NEWS PICTURES HAS NOW MADE IT EASIER TO FIND THE BEST PHOTOS FROM THE MOST IMPORTANT STORIES AND TOP STANDALONES EACH DAY. Search for "TPX" in the IPTC Supplemental Category field or "IMAGES OF THE DAY" in the Caption field and you will find a selection of 80-100 of our daily Top Pictures.    REUTERS NEWS PICTURES.     TEMPLATE OUT

Lucas Jackson/Reuters

Lightning strikes One World Trade Center in Manhattan as the sun sets behind the city after a summer storm in New York on Wednesday Read more

A FIFA official tests the pitch as rain pours down prior to the group G World Cup soccer match between the USA and Germany at the Arena Pernambuco in Recife, Brazil, Thursday, June 26, 2014. (AP Photo/Petr David Josek)

Petr David Josek/AP

A Fifa official tests the pitch as rain pours down before the group G World Cup football match between the US and Germany at the Arena Pernambuco in Recife, Brazil Read more

A longtime exposure shows smolderings remains of overnight fires on the hillsides of San Marcos, San Diego county, California, USA, early 16 May 2014. Over 1,000 firefighters battled a series of fast-moving southern California wildfires on 15 May that spread across the region despite the efforts of more than 20 firefighting aircraft. Huge clouds of black smoke hung over much of San Diego County, where the worst blazes were burning 15 May, driven by the blistering Santa Ana winds, which bring strong, dry gusts out from the interior desert.

Stuart Palley/EPA

Smoldering remains of overnight fires on the hillsides of San Marcos, San Diego county, California, USA, early Friday. Over 1,000 firefighters battled a series of fast-moving southern California wildfires that spread across the region despite the efforts of more than 20 firefighting aircraft.

A plane drops fire retardant over a hot spot on Wednesday, May 14, 2014, in San Marcos, Calif. Wednesday, May 14, 2014, in San Marcos, Calif. Flames engulfed suburban homes and shot up along canyon ridges in one of the worst of several blazes that broke out Wednesday in Southern California during a second day of a sweltering heat wave, taxing fire crews who fear the scattered fires mark only the beginning of a long wildfire season.

AP

A plane drops fire retardant over a hot spot in San Marcos, California. Flames engulfed suburban homes and shot up along canyon ridges in one of the worst of several blazes that broke out in Southern California during another day of a sweltering heat

Joe Raedle/Getty Images

Philip Triplett recovers an American flag from the destroyed home of a family friend after it was hit by a tornado in Louisville, Mississippi. A string of deadly tornadoes tore through the region beginning on Monday, leaving more than two dozen dead.

Debris from Mayflower RV is pictured strewn around in Mayflower, Arkansas April 29, 2014. A storm system that killed more than 20 people continued its march across a large swath of the U.S. Southeast on Tuesday, packing baseball-sized hail, damaging winds and the threat of more tornados, meteorologists said.

Carlo Allegri/Reuters

Debris from an RV lot is strewn around in Mayflower, Arkansas. A storm system that killed more than 20 people continued its march across a large swath of the US southeast on Tuesday, packing baseball-sized hail, damaging winds and the threat of more tornadoes.

Spain's Sergio Garcia hits a shot on the second hole during the second round of the Masters golf tournament at the Augusta National Golf Club in Augusta...Spain's Sergio Garcia hits a shot on the second hole during the second round of the Masters golf tournament at the Augusta National Golf Club in Augusta, Georgia April 11, 2014.

Mike Segar/Reuters

Spain’s Sergio Garcia hits a shot on the second hole during the second round of the Masters golf tournament at the Augusta National Golf Club in Augusta, Georgia

US First Lady Michelle Obama (C) perform...US First Lady Michelle Obama (C) performs "tai chi" with students from the Chengdu No7 High School in Chengdu in China's southwest Sichuan province on March 25, 2014. Michelle Obama arrived in China on March 20 with her mother and daughters to kick off a seven-day, three-city tour where she will focus on education and cultural exchange.   AFP PHOTO / Peter PARKSPETER PARKS/AFP/Getty Images

Peter Parks/AFP

US First Lady Michelle Obama performs t’ai chi with students from the Chengdu No 7 High School in Chengdu, in China’s southwest Sichuan province. Michelle Obama arrived in China last week with her mother and daughters to start a seven-day, three-city tour where she will focus on education and cultural exchange. Read more