This week in the world in photos

A soldier walks through a clandestine laboratory to produce cocaine in Quebrada Guainia, in Colombia's southern Pacific coast, Wednesday, March 17, 2010. Troops seized cocaine and chemicals to produce the alkaloid at the lab that, according to the Army, belonged to rebels of the Revolutionary Armed Forces of Colombia, FARC. Associated Press

A demonstrator is taken away from the street by security agents during a protest in Havana, Wednesday, March 17, 2010. Cuban security agents prevented Ladies in White, a group of female dissidents, from marching on the outskirts of the capital to demand the release of their jailed husbands and sons, physically removing them when they lay down in the street in protest. Associated Press