Charles is a reporter and producer based in Moscow.
Russia's opposition likens itself to Michael Phelps facing an extreme challenge. "If you have a champion swimmer, and you fill up the pool with acid, he won't be able to swim. But it doesn't mean he's a weak swimmer."
A series of doping scandals involving Russian athletes has led to calls for an outright ban against the entire Russian Olympic squad. Now Russian athletes are waiting to find out whether they're going to have to sit this one out.
Arts, Culture & Media
When Fidel Castro ushered in the first communist state in the Western Hemisphere, Soviet Russia fell in love with Cuba. And the romance that lasted decades.
Science, Tech & Environment
Here's the story of the Soviet Union's pioneering female cosmonauts program and Russia's efforts of late to revive it.
Conflict & Justice
In the attacks in Paris and — in particular — the Bataclan music hall - Russians see echoes of another tragedy: the Nord Ost theater siege of 2002.