Caroline Kennedy Pictures

Artist Vlatka Horvat (R) explains her art to Caroline Kennedy (L) and others during the kick off of the first annual Madison Avenue Gallery Walk at the Neuhoff Gallery on May 10, 2008 in New York City. (Photo by Scott Wintrow/Getty Images North America)

Caroline Kennedy (R) presents British Prime Minister Gordon Brown with a bust of her late father, President John F. Kennedy, following his address to business leaders and political academics from Boston, at the John F. Kennedy Library and Museum April 18, 2008 in Boston, MA. Prime Minister Gordon Brown returns the UK later today after a week long visit to the US and is said to be angry that the British tax row has overshadowed his trip. (Photo by Jeff J Mitchell/Getty Images News)