Queen Elizabeth II Visits The World Trade Center

Queen Elizabeth II visits Ground Zero at the World Trade Center site on July 6, 2010 in New York City. (credit: Pool/Getty Images)

Sarah Ferguson In New York

The Duchess of York Sarah Ferguson attends a press conference announcing the launch of a public service campaign to alert parents about the warning signs of Primary Immunodeficiency (PI) April 29, 2002 in New York City. Primary Immunodeficiency is an umbrella term for more than 100 genetic defects that can result in life-threatening infections. (Photo by Mario Tama/Getty Images)

Sarah Ferguson In New York

The Duchess of York Sarah Ferguson attends a press conference with Jason Shuman, 11, who has Primary Immunodeficiency (PI), during the launch of a public service campaign to alert parents about the warning signs of PI April 29, 2002 in New York City. Primary Immunodeficiency is an umbrella term for more than 100 genetic defects that can result in life-threatening infections. (Photo by Mario Tama/Getty Images)

Prince Harry Pays His Respects At The World Trade Center Site

Britain's Prince Harry pauses after placing a wreath at the World Trade Center site in lower Manhattan in New York, May 29, 2009. rince Harry, 24, is making his debut in New York and his first trip abroad as an official representative of the royal family. (credit: LUCAS JACKSON/AFP/Getty Images)

Prince Harry Pays His Respects At The World Trade Center Site

Britain's Prince Harry and New York Governor David Paterson (2nd-L) meet with families of Sept. 11 attacks victims at the World Trade Center site in lower Manhattan in New York, May 29, 2009. (credit: REUTERS/Lucas Jackson/Getty Images)

Prince Harry Pays His Respects At The World Trade Center Site

Britain's Prince Harry and New York Governor David Paterson (L) meet with families of Sept. 11 attacks victims at the World Trade Center site in lower Manhattan in New York, May 29, 2009.(credit: REUTERS/Lucas Jackson/Getty Images)

Prince Harry Pays His Respects At The World Trade Center Site

Britain's Prince Harry and New York Governor David Paterson (L) meet with families of Sept. 11 attacks victims at the World Trade Center site in lower Manhattan in New York, May 29, 2009. (credit: REUTERS/Lucas Jackson/Getty Images)

Prince Harry Pays His Respects At The World Trade Center Site

Prince Harry meets families of victims at Ground Zero, the site of the former World Trade Center, on May 29, 2009 in New York, New York. Prince Harry is on a whistlestop 36 hour official trip to New York City ending on Saturday afternoon. He is spending Friday on official duties, paying his respects at Ground Zero, visiting a veterans hospital and naming the British Gardens. On Saturday he will take part in a polo match supporting his charity Sentebale. This is on the second time the Prince has visited the States, the first was a private visit as a child. (Photo by Chris Jackson/Getty Images)

Prince Harry Pays His Respects At The World Trade Center Site

Prince Harry and New York Governor David Paterson (2nd-L) meet with families of the victims of the World Trade Centre attacks in 2001 at Ground Zero in lower Manhattan on May 29, 2009 in New York City. Prince Harry is on a whistle-stop 36 hour official trip to New York City ending on Saturday afternoon. He is spending today on official duties, paying his respects at Ground Zero, visiting a veteran's hospital and naming the British Gardens. Tomorrow he will take part in a polo match supporting his charity Sentebale. The Prince is visiting the States for only the second time as the first was a private visit when he was a child. (Photo by Stephen Chernin-Pool/Getty Images)

Queen Elizabeth II Visits The World Trade Center

Queen Elizabeth II visits Ground Zero at the World Trade Center site on July 6, 2010 in New York City. (credit: Pool/Getty Images)

Queen Elizabeth II Visits The World Trade Center

Queen Elizabeth II visits Ground Zero at the World Trade Center site on July 6, 2010 in New York City. (credit: Pool/Getty Images)

Queen Elizabeth II Visits The World Trade Center

Queen Elizabeth II visits Ground Zero at the World Trade Center site on July 6, 2010 in New York City. (credit: Pool/Getty Images)