Pictures of the Day: Monday, Jan. 31, 2011

Police officers detain an opposition activist during a banned anti-Kremlin protest in St. Petersburg, Russia. Opposition groups have been calling rallies on the 31st day of each month
Dmitry Lovetsky / AP

Dis-Assembly

Police officers detain an opposition activist during a banned anti-Kremlin protest in St. Petersburg, Russia. Opposition groups have been calling rallies on the 31st day of each month to honor the 31st article of the Russian Constitution, which guarantees the right of assembly.