A 19-year-old Japanese macaque rubs her eye as she reacts to pollen from a cedar tree, at Awajishima Monkey Center, March 26, 2012, in Sumoto, Hyogo, Japan. Some twenty monkeys are suffering the effects of hay fever this time of year, displaying the same symptoms humans do. (Buddhika Weerasinghe/Getty Images)

German actors Karl Knaup, left, and Herbert Knaup pose for a picture during a press event promoting the ARD TV film "Milchgeld" at the Hotel Atlantic in Hamburg, Germany, March 26, 2012. (Georg Wendt/dpa/Corbis)

U.S. President Barack Obama looks out from a helicopter after arriving at the Osan Air Base, south of Seoul, March 25, 2012. Obama is in South Korea to attend the two-day Nuclear Security Summit, where nearly 60 heads of state and leaders of global institutions will meet to discuss nuclear safety and the threat of nuclear terrorism. (Yonhap/AP Photo)

Actress Cloris Leachman gets a smooch from Uggie, the dog from the movie "The Artist," at the 26th annual Genesis Awards benefitting the Humane Society, March 24, 2012, in Beverly Hills, Calif. (David Livingston/Getty Images)

Amadores de Portalegre matadors are rammed by a bull during a bullfighting festival in Elvas, west Portugal, March 25, 2012. (Nuno Veiga/EPA)

A Tibetan man screams as he runs engulfed in flames after self-immolating at a protest in New Delhi, India, ahead of Chinese President Hu Jintao's visit to the country, March 26, 2012. The Tibetan activist lit himself on fire at the gathering and was rushed to hospital with unknown injuries, reports said. (Manish Swarup/AP Photo)

Takahiko Kozuka of Japan performs during a training session at the 2012 World Figure skating Championships in Nice, southern France, March 26, 2012. (Lionel Cironneau/AP Photo)

Pope Benedict XVI waves from the popemobile wearing a Mexican sombrero as he arrives to give a Mass in Bicentennial Park near Silao, Mexico, March 25, 2012. (Eduardo Verdugo/AP Photo)

Young fans try for autographs by Los Angeles Angels first baseman Albert Pujols before a spring training baseball game against the Texas Rangers in Tempe, Ariz., March 25, 2012. (Chris Carlson/AP Photo)