White House Prepares For Halloween Festivities

(credit: Mark Wilson/Getty Images)

Workers put up Halloween decorations on the north lawn of the White House October 28, 2011 in Washington, DC. U.S. President Barack Obama and first lady Michelle Obama will be hosting guests at the White House to celebrate Halloween.

White House Prepares For Halloween Festivities

(credit: Mark Wilson/Getty Images)

Workers put up Halloween decorations on the north lawn of the White House October 28, 2011 in Washington, DC. U.S. President Barack Obama and first lady Michelle Obama will be hosting guests at the White House to celebrate Halloween.

Costumed Greeters Welcome Trick-Or-Treaters

(credit: MANDEL NGAN/AFP/Getty Images)

Costumed greeters welcome trick-or-treaters to the the White House to celebrate Halloween October 29, 2011 in Washington, DC.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

At the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

At the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

At the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

At the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

At the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

At the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

A Costumed Greeter Dressed As Spiderman

(credit: MANDEL NGAN/AFP/Getty Images)

A costumed greeter dressed as Spiderman plays with a young trick-or-treater dressed as the same character at the White House to celebrate Halloween October 29, 2011 in Washington, DC.

President Barack Obama And First Lady Michelle Obama

(credit: MANDEL NGAN/AFP/Getty Images)

US President Barack Obama and First Lady Michelle Obama offer treats to trick-or-treaters October 29, 2011 to celebrate Halloween on the North Portico of the White House in Washington, DC.

First Lady Michelle Obama Jumps For Joy

(credit: MANDEL NGAN/AFP/Getty Images)

US First Lady Michelle Obama jumps for joy as she sees a child in costume while waiting for trick-or-treaters with s US President Barack Obama and her mother Marian Robinson October 29, 2011 to celebrate Halloween on the North Portico of the White House in Washington, DC.

US President Barack Obama hugs a costume

(credit: MANDEL NGAN/AFP/Getty Images)

US President Barack Obama hugs a costumed child as First Lady Michelle Obama looks on as they offer treats to trick-or-treaters October 29, 2011 to celebrate Halloween on the North Portico of the White House in Washington, DC.

First Lady Michelle Obama hugs a costume

(credit: MANDEL NGAN/AFP/Getty Images)

First Lady Michelle Obama hugs a costumed child as US President Barack Obama offers treats to trick-or-treaters October 29, 2011 to celebrate Halloween on the North Portico of the White House in Washington, DC.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

Trick or treaters arrive at the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

President Barack Obama, first lady Michelle Obama and her mother Marian Robinson great trick or treaters at the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

President Barack Obama hugs a trick or treater while greeting others with first lady Michelle Obama and her mother Marian Robinson at the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

At the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

President Barack Obama waits with first lady Michelle Obama and her mother Marian Robinson to great trick or treaters at the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

President Barack Obama greets trick or treaters with first lady Michelle Obama and her mother Marian Robinson at the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

At the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.

President Obama And The First Lady Host Halloween Party For Military Families

(credit: Brendan Smialowski/Getty Images)

President Barack Obama greets a trick or treater dressed as a beheaded person with first lady Michelle Obama and her mother Marian Robinson at the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party.