Russia detains critic Alexei Navalny, faces clash with Western nations

Police detained prominent Kremlin critic Alexei Navalny on arrival in Moscow on Sunday after he flew home to Russia from Germany for the first time since he was poisoned last summer, triggering a political clash with the West.

A still image taken from video footage shows law enforcement officers speaking with Russian opposition leader Alexei Navalny before leading him away at Sheremetyevo airport in Moscow...