Britain's Prince Harry embraces model Karolina Kurkova after the Sentebale Royal Salute Polo Cup charity match in Greenwich, Conn., May 15, 2013. Teammates Malcolm Borwick, far left, and Marc Ganzi join him on the podium after the Sentebale team won.

Britain's Prince Harry, rides during the Sentebale Royal Salute Polo Cup charity match in Greenwich, Conn., May 15, 2013.

Britain's Prince Harry, right, walks with polo player Nacho Figueras before the Sentebale Royal Salute Polo Cup charity match in Greenwich, Conn., May 15, 2103.

Britain's Prince Harry walks across the polo field before the Sentebale Royal Salute Polo Cup charity match in Greenwich, Conn. on May 15, 2103. Prince Harry is is competing at the Greenwich Polo Club to benefit Sentebale, the charity he co-founded to help poor children and AIDS orphans in the small African nation of Lesotho.

HRH Prince Harry hits a baseball while participating in drills at the Harlem RBI baseball youth development program during the fifth day of his visit to the United States on May 14, 2013 in New York City.

Britain's Prince Harry participates in baseball drills with Harlem RBI's youth on the Field of Dreams during a visit to Harlem RBI in New York, May 14, 2013.

Britain's Prince Harry participates in baseball drills with Harlem RBI's youth on the Field of Dreams during a visit to Harlem RBI in New York, May 14, 2013.

HRH Prince Harry and PM David Cameron are presented with dolls of themselves by 'Makielab' company co-founder Jo Roach during part of a UK business campaign called 'GREAT' at the Milk Studios on May 14, 2013 in New York.

HRH Prince Harry and British Prime Minister David Cameron arrive on a London Routemaster bus as part of a UK business campaign called 'GREAT' on May 14, 2013 in New York.

New Jersey Gov. Chris Christie, right, talks to Britain's Prince Harry while visiting the area hit by Superstorm Sandy, Tuesday, May 14, 2013, in Seaside Heights, N.J. Prince Harry began a tour of New Jersey's storm-damaged coastline, inspecting dune construction, walking past destroyed homes and shaking hands with police and other emergency workers.

Britain's Prince Harry shakes hands with a resident while standing next to New Jersey Gov. Chris Christie during a visit to an area hit by Superstorm Sandy, May 14, 2013, in Seaside Heights, N.J. New Jersey sustained about $37 billion worth of damage from the storm.

Britain's Prince Harry, center, talks to people during a visit to an area hit by Superstorm Sandy, May 14, 2013, in Seaside Heights, N.J. New Jersey sustained about $37 billion worth of damage from the storm.

New Jersey Gov. Chris Christie, center left, walks with Britain's Prince Harry, center, while visiting an area hit by Superstorm Sandy, May 14, 2013, in Seaside Heights, N.J.

Britain's Prince Harry, right, talks to a young girl at Casino Pier during a tour of the area hit by Superstorm Sandy, May 14, 2013, in Seaside Heights, N.J. The prince toured the community's rebuilt boardwalk, which is about two-thirds complete.

Britain's Prince Harry and New Jersey Gov. Chris Christie talk with members of the Bowden family on their empty lot in Mantoloking, N.J., May 14, 2013.

Britain's Prince Harry is offered a shoe as a souvenir by the U.S. Air Force Academy mascot "The Bird" at the academy in Colorado Springs, Colo., May 12, 2013. The Warrior Games, which takes place at the academy, is a Paralympic-style competition featuring injured servicemen and women from the U.S., United Kingdom, Canada and Australia.

Prince Harry, left, talks with a U.S. Marine Corps competitor before the start of the 10k Men's Handcycle race, at the 2013 Warrior Games, at the U.S. Air Force Academy, in Colorado, May 12, 2013. The Warrior Games is a competition for wounded, ill and injured service members.

Prince Harry congratulates LCPL Maurillia Simpson as he competes in the Warrior Games during the third day of his visit to the United States on May 11, 2013 in Colorado Springs, Colo.

Prince Harry (L) talks with Olympic gold medalist Missy Franklin at a reception at the Sanctuary Golf Course in Sedalia, Colo., on May 10, 2013.

Wearing his British Army uniform, Britain's Prince Harry visits with wounded soldiers undergoing physical therapy at the Military Advanced Training Center at Walter Reed National Military Medical Center in Bethesda, Md., just outside Washington, May 10, 2013. At right is Staff Sgt. Timothy Payne who lost his legs in an IED explosion in Afghanistan.

Prince Harry wearing his No. 1 ceremonial uniform of The Blues and Royals as he pays his respects to the victims of the Afghanistan conflict and the tomb of the unknown soldier during the second day of his visit to the United States at Arlington National Cemetery on May 10, 2013 in Arlington, Virginia.

Britain's Prince Harry of Wales places a wreath at the Tomb of the Unknowns in Arlington National Cemetery, May 10, 2013 in Arlington, Virginia. Prince Harry is on a week long tour of the United States where he is visiting charities.

Prince Harry of Wales, second right, greets former Senator Max Cleland, a Democrat from Georgia, second left, with Peter Westmacott, U.K. ambassador to the U.S., center, and wife Susie Westmacott, right, before a reception at the ambassador's residence in Washington, D.C., May 9, 2013. Prince Harry received a glowing tribute from First Lady Michelle Obama when his seven-day U.S. tour began today.

Prince Harry, wearing his British Army ceremonial uniform of the Blues And Royals in his role as Captain Harry Wales, visits Section 60 of Arlington National Cemetery, where veterans of the wars in Iraq and Afghanistan are buried, May 10, 2013 in Arlington Virginia.

Prince Harry greets U.S. Sen. John McCain, left, while arriving on Capitol Hill during the first day of his visit to the U.S. at Russell Senate Office Building, May 9, 2013 in Washington.

Prince Harry is shown a ground penetrating radar, a tool used for detecting land mines, during a tour of a HALO Trust photo exhibit on landmines and unexploded ordinances, with HALO Trust Weapons and Ammunition Disposal Desk Officer Richard Boulter, Republican Senator from Arizona John McCain and HALO Trust Afghanistan Desk Officer Tim Porter, on Capitol Hill, May 9, 2013 in Washington.

Britain's Prince Harry tours an exhibition on Capitol Hill in Washington staged by the HALO Trust, escorted by Guy Willoughby, far left, from the Trust and Sen. John McCain, R-Ariz.,right, May 9, 2013.

As Britain's Prince Harry tours an exhibition by the HALO Trust on Capitol Hill in Washington, journalists record the event from a balcony in the rotunda of the Russell Senate Office Building, May 9, 2013.

Prince Harry talks to mine detection demonstrators as he tours the HALO Trust exhibit on landmines and unexploded ordinances, escorted by U.S. Senator John McCain.

Prince Harry talks with Sen. John McCain, R-Ariz., as they walk out of the Russell Senate Office Building on Capitol Hill, May 9, 2013.

First lady Michelle Obama, right, speaks during an unannounced visit from Prince Harry at an event in honor of military mothers at the White House in Washington, May 9, 2013.

First lady Michelle Obama, center, with Jill Biden, introduces a surprise visit from Prince Harry at an event in honor of military mothers in the East Room of the White House in Washington, May 9, 2013.

HRH Prince Harry talks to young children during an event hosted by first lady Michelle Obama to honor military families at the White House, May 9, 2013 in Washington.