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Why it matters: It is widely suspected that Russian state operatives took part in poisoning Navalny while on a domestic flight. Novichok is a Soviet-era poison often attributed to Russian security services, and Navalny is one of President Vladimir Putin's most outspoken critics.
- Navalny was kept in a medically induced coma for two weeks after being poisoned. Doctors say it is too soon to know if he will face any long-term side effects from the nerve agent.