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Dr. Joe Wallace, right, uses a pressure washer to cut years of algae growth off the Eye Spy statues at Silver Springs State Park in Ocala, Florida.

Alan Youngblood/The Ocala Star-Banner/AP

Dr. Joe Wallace, right, uses a pressure washer to cut years of algae growth off the Eye Spy statues at Silver Springs State Park in Ocala, Florida.

Virginia residents wait in line in the pre-dawn hours to vote in the 2014 US midterm elections at a historic property called the Hunter House at Nottoway Park in Vienna, Virginia, USA, 04 November 2014. Virginia voters are choosing between Democrat Mark Warner and Republican Ed Gillespie for the US Senate. US voters are increasingly disillusioned with Washington as they head to the polls 04 November to elect senators and members of the House of Representatives.

Jim Lo Scalo/EPA

Residents wait in line in the pre-dawn hours to vote in the 2014 US midterm elections at a historic property called the Hunter House at Nottoway Park in Vienna, Virginia

 Iowa Senate Candidate Bruce Braley Campaigns Ahead Of Midterm Elections

Chip Somodevilla/Getty Images

Democratic US Senate candidate Bruce Braley (L) hugs volunteer Pat Halferty during a campaign stop at the Lynn Count Democratic HQ on November 3 in Cedar Rapids, Iowa. Polls put Braley neck-and-neck with Republican Joni Ernst and the Iowa result could decide which party controls the Senate

Protests over Michael Brown shooting...epaselect epa04363300 National Guard watch from a small hill top a couple blocks away as demonstrators protest the shooting death of Michael Brown in Ferguson, Missouri, USA, 21 August 2014. The National Guard is to withdraw from Ferguson, Missouri as nearly two weeks of often violent protests have finally waned. Only six arrests were logged overnight in the town, which saw a more peaceful night after steady protests related to the killing of an unarmed black teenager by a policeman.  EPA/LARRY W. SMITH

Larry W. Smith/EPA

Members of the National Guard watch from a small hilltop two blocks away from protesters in Ferguson, Missouri 

Protests over Michael Brown shooting...epa04363296 Demonstrators protest the shooting death of Michael Brown in Ferguson, Missouri, USA, 21 August 2014. The National Guard is to withdraw from Ferguson, Missouri as nearly two weeks of often violent protests have finally waned. Only six arrests were logged overnight in the town, which saw a more peaceful night after steady protests related to the killing of an unarmed black teenager by a policeman.  EPA/LARRY W. SMITH

Larry W.Smith/EPA

Demonstrators protest the shooting of Michael Brown in Ferguson, Missouri, as the National Guard announces its withdrawal from the town as calm descends following two weeks of often violent clashes 

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 

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 Missouri

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 

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 

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.