German journalists see possible connection with death of ex-KGB spy Litvinenco.

Russia today is honoring workers in the state security agencies -- a professional holiday better known by its Soviet-era appellation, "Chekists' Day" -- as the legacy of the KGB grows increasingly commercial -- and criminal.

The investigation surrounding the mysterious poisoning death by radioactive polonium-210 of the former Russian spy Alexander Litvinenko is straining Russian-British relations.