April 4, 2012 (18 images)

New waxwork figures of Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge are revealed at Madame Tussauds in London on April 4, 2012. UPI/Paul Treadway

Wrestlers compete in a traditional wrestling competition called Bachokheh, in Esfarayen, Iran on April 2, 2012. Bachokheh, traditionally played on the 13th and 14th of the Iranian New Year, has gained popularity in recent years. UPI/Maryam Rahmanian

U.S. President Barack Obama speaks to the audience after signing the Stop Trading on Congressional Knowledge (STOCK) Act in the Eisenhower Executive Office Building in Washington, D.C. on April 4, 2012. The law makes members of Congress subject to the same insider trading laws that apply to everyone else. UPI/Kevin Dietsch

U.S. President Barack Obama signs the Stop Trading on Congressional Knowledge (STOCK) Act in the Eisenhower Executive Office Building in Washington, D.C. on April 4, 2012. The law makes members of Congress subject to the same insider trading laws that apply to everyone else. UPI/Kevin Dietsch