In 1999 Vladimir Putin directed the FSB to blow up apartment buildings all over Russia to stoke a patriotic wave that would soon bring him to power as the new President of Russia. The explosions stopped only when then two FSB agents were caught planting the next bomb.
In 2000-2002 Alexander Litvinenko, a Russian dissident living in England, publicized the 1999 bombings. He proved they were organized by Putin and the FSB. This information became the opposition's main argument for why Putin was not fit to be Russia's President.
In 2003 Litvinenko identified and publicized the FSB's connection to the organizers of the 2002 Nord-Ost terror act in Moscow.
In 2006 FSB agents killed Litvinenko in London using a highly toxic radioactive element Polonium-210.
Many others were killed by Putin's regime for investigating and publicizing the FSB's connection to the 1999 bombings and the 2002 Nord-Ost terror act: Sergei Yushenkov (killed April 17, 2003), Yuri Schekochikhin (killed July 3, 2003), Anna Politkovskaya (killed October 7, 2006).
Others were assasinated with false information - the Information Polonium campaign by Russia and the FSB that has reached many innocent victims worldwide.