Protesters run for cover during clashes with the Egyptian riot police near Tahrir square in Cairo, Egypt, Tuesday, Nov. 22, 2011. Egypt's civilian Cabinet has offered to resign after three days of violent clashes in many cities between demonstrators and

Jo-Wilfred Tsonga of France celebrates at match point after beating Mardy Fish of the U.S. during their round robin singles tennis match at the ATP World Tour Finals at O2 Arena in London, Tuesday Photo: PTI

Novak Djokovic of Serbia holds the trophy awarded to the ATP World Tour Player of the Year following a presentation at the ATP World Tour Finals, at the O2 arena in London, Tuesday Photo: PTI

President Barack Obama meets with the Chris and Kathy Corkery, and their sons Andrew and Nicholas at Julien's Corner Kitchen restaurant in Manchester Photo: PTI

Serena, left, and Venus Williams pose for photos during a news conference in Bogota, Colombia, Tuesday Nov. 22, 2011.

Real Madrid's Fabio Coentrao, up, duels for the ball with Dinamo Zagreb's Jerko Leko during their group D Champions League soccer match at the Santiago Bernabeu stadium, in Madrid, Spain, Tuesday Photo: PTI

Lyon's Kim Kallstrom of Sweden, right, challenges with Ajax' Nicolas Lodeiro, left, during their Champions League soccer match at Gerland stadium, in Lyon, central France, Tuesday Photo: PTI

Roger Federer of Switzerland serves to Rafael Nadal of Spain during their round robin singles match at the ATP World Tour Finals, at the O2 arena in London Photo: PTI

West Indies batsman K Powell plays a shot during Day 2 of the 3rd cricket test match against India in Mumbai on Wednesday. Photo: PTI

India's Ishant Sharma celebrates with teammates the dismissal of West Indies batsman K Edwards during Day 2 of the 3rd cricket test match against India in Mumbai on Wednesday. Photo: PTI

AICC General Secratary Rahul Gandhi waves to crowd during his "Jan Sampark Yatra" in Bahraich on Wednesday. Photo: PTI

West Indian batsman Darren Bravo celebrates his century during Day 2 of the 3rd cricket test match against India in Mumbai on Wednesday. Photo: PTI

Union Home Ministeri P. Chidambaram and Deputy Prime Minister and Minister of Interior, UAE, Lt. Gen. Sheikh Saif Bin Zayed Al Nahyan signing agreements on security cooperation in New Delhi on Wednesday. Photo: PTI