In this web exclusive, former chess champion Garry Kasparov, a fervent critic of Russian President Vladimir Putin, explains to Lesley Stahl why he believes Putin gains strength when the West responds to Russian actions with indecisiveness or hesitation. He also describes his hopes for Russia once the Putin regime is out of power.

Watch Lesley Stahl's report on the nearly year-long detention in Russia of American journalist Evan Gershkovich:    • Evan Gershkovich's first year in capt...  

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