AP Photo/Herrera/Prensa Latina
Thousands attend the May 1 parade to celebrate Labor Day in Havana, Friday, May 1, 2009.
AP Photo/Javier Galeano
Workers hold up a painting depicting Cuba's President Raul Castro, left, and his brother Fidel Castro during the International Workers Day rally at the Revolution square in Havana, Friday, May 1, 2009.
AP Photo/Javier Galeano
Cuba's President Raul Castro gestures during the celebrations of the International Workers Day at the Revolution square in Havana, Friday, May 1, 2009.
AP Photo/Javier Galeano
Thousands gather during the celebrations of the International Workers' Day at the Revolution square in Havana, Friday, May 1, 2009.
AP Photo/Javier Galeano
Students hold up Cuban flags during the celebrations of the International Workers' Day at the Revolution square in Havana, Friday, May 1, 2009.
AP Photo/Javier Galeano
Students hold letters forming the words "Free Cuba" in Spanish during the celebrations of the International Workers' Day at the Revolution square in Havana, Friday, May 1, 2009.
France
AP Photo/Francois Mori
A woman hands out leaflets reading "General Dream" during the traditional May Day march in Paris, Friday May 1, 2009. French unions and workers marched nationwide on Friday, hoping to build on momentum from recent strikes and protests against French president Nicolas Sarkozy's handling of the economic downturn. The leaflet is a play on the words "dream" and "strike", which only differ by one letter in French.
AP Photo/Christophe Ena
A group led by Socialist party leader Martine Aubry takes part in the traditional May Day march in Paris, Friday, May 1, 2009. French unions and workers marched nationwide on Friday, hoping to build on momentum from recent strikes and protests against French president Nicolas Sarkozy's handling of the economic downturn. The placard at left raeds "Freedom?, Equality?, Rebellion", as the Pantheon building is seen behind it.
AP Photo/Francois Mori
Leader of the CFDT union Francois Chereque, second left, CGT union leader Bernard Thibault, third left, Secretary General of the Worker's Force union Jean-Claude Mailly, fourth left, and chief of the FSU union federation Gerard Aschieri, right, march during the traditional May Day march in Paris, Friday, May 1, 2009.
AP Photo/Christophe Ena
A man wears a mask reading "Anti-Sarko hygienic mask", referring to French president Nicolas Sarkozy, during the traditional May Day march in Paris, Friday, May 1, 2009.
Czech Republic
AP Photo/Petr David Josek
Far right wing sympathizers attend a May Day march in Brno, Czech Republic, Friday, May 1, 2009. Several hundreds of right-wing sympathizers marched through city of Brno on May 1.
AP Photo/Petr David Josek
A young girl protests against May Day marches of far right wing sympathizers in Brno, Czech Republic, Friday, May 1, 2009.
Spain
AP Photo/Daniel Ochoa de Olza
Spanish trade unions members holding banners and flags demonstrate to mark May Day in central Madrid, Friday, May 1, 2009.
AP Photo/Daniel Ochoa de Olza
Spanish trade unions members holding banners and flags demonstrate to mark May Day in central Madrid, Friday, May 1, 2009.
Switzerland
AP Photo/Keystone, Ennio Leanza
A protestor shelters behind a garbage bin, during a May Day demonstration in Zurich, Switzerland, Friday, May 1, 2009. Hundreds of thousands of European workers feeling the pinch of the economic crisis rallied at May Day protests from Moscow to Berlin to Istanbul.
Poland
AP Photo/Czarek Sokolowski
People take part in May Day marches in Warsaw, Poland, Friday, May 1, 2009.
Zimbabwe
AP Photo/Tsvangirayi Mukwazhi
Zimbabwean traditional dancers perform for an unidentified visitor during May Day commemorations in Harare, Friday, May, 1, 2009. Zimbabwean Prime Minster Morgan Tsvangirai, who addressed the gathering, said that the government was broke and could not afford high wages for general workers.
Pakistan
AP Photo/K.M. Chaudary
Pakistanis participate at a rally to observe Labor Day in Lahore, Pakistan, Friday, May 1, 2009.
AP Photo/K.M. Chaudhry
Pakistanis participate a rally to observe the Labor Day in Lahore, Pakistan, Friday, May 1, 2009.
AP Photo/K.M. Chaudhry
A Pakistani girl participates in a rally to observe Labor Day in Lahore, Pakistan, Friday, May 1, 2009.