

A paramilitary officer stands guard before opening the gate at the Shanghai World Expo on Tuesday in Shanghai, China. AP
Workers gather oil-soaked algae on the beach in Gulfport, Miss., on Tuesday. Energy giant BP stuggled to plug a gushing undersea leak that threatens the Gulf Coast fishing and tourism industries. Ben Gruber/Reuters
A demonstrator holds a sign during a rally against Iranian President Mahmoud Ahmadinejad at Dag Hammarskjold Plaza outside the United Nations Headquarters on Monday. Ahmadinejad addressed a UN treaty conference reviewing the Nuclear Nonproliferation Treaty during a visit to New York Monday. Jason DeCrow/AP
Lee Westwood, of England, follows the flight of his golf ball from the 11th green during a practice round for The Players Championship Golf Tournament on Tuesday in Ponte Vedra Beach, Fla. Chris O'Meara/AP
Red shirt protesters encamped around Bangkok's main shopping district dance to songs under an awning on Tuesday. Protesters in Thailand broadly backed a government reconciliation plan but objected to a proposed November election. Adrees Latif/Reuters
An Indian holds flags at a protest by left-wing labor unions in New Delhi, India, on Tuesday. Hundreds of workers gathered to demand higher wages and benefits. Kevin Frayer/AP
A law enforcement officer chases down and tasers a fan who ran onto the field before the eighth inning of a baseball game between the Philadelphia Phillies and the St. Louis Cardinals on Monday night in Philadelphia. St. Louis won 6-3. Matt Slocum/AP
Attorney General Eric Holder, Homeland Security secretary Janet Napolitano, and other officials hold a news conference on the attempted bombing in Times Square at the Justice Department in Washington on Tuesday. Pablo Martinez Monsivais/AP
Kalamazoo, Mich. Central High School students celebrate after the video announcement from the White House website that Kalamazoo Central High School won the contest to have President Barack Obama as its commencement speaker on June 10. Mark Mugnaski/Kalamazoo Gazette/AP
A tourist takes pictures of the banners over the defensive walls of the ancient Acropolis in Greece on Tuesday. About 100 protesters from the Greek Communist Party unfurled the banners in Greek and English reading 'Peoples of Europe – Rise up.' Police did not intervene as the protesters carrying red flags stood beside the Parthenon. Greece's cash-strapped government announced sweeping spending cuts worth 30 billion Euros ($40 billion) through 2012 on Sunday, in order to secure a vital rescue package of loans from the International Monetary Fund and other countries using the euro. Nikolas Giakoumidis/AP
US Army soldiers patrol in the Arghandab Valley near Kandahar on Tuesday. US forces are massing on the outskirts of Kandahar for the biggest military offensive of the nearly nine-year-old war, in the hope of turning the tide against a strengthening Taliban insurgency. Yannis Behrakis/Reuters
An Army team salutes a transfer vehicle after returning the remains of Sgt. Anthony O. Magee to Dover Air Force Base, Del., on Tuesday. According to the Department of Defense, Magee died April 27 at Landstuhl Regional Medical Center in Germany from wounds sustained on April 24 when enemy forces attacked his unit in Iskandariyah, Iraq. Steve Ruark/AP
Russian fighter jets release flares over Red Square during practice for the Victory Day parade in Moscow on Tuesday. Mikhail Voskresensky/Reuters
Businesses are under water in downtown Nashville, Tenn., on Monday evening. Heavy weekend rain caused the Cumberland River to overflow its banks. Jeff Roberson/AP
Students sit together in Trafalgar Square, London, on Tuesday. Matt Dunham/AP