Mexico captures notorious drug lord 'La Tuta'
Mexican authorities have arrested Servando Gomez Martinez, a former teacher who headed the Knights Templar drug cartel.
Russian politician Boris Nemtsov killed
The Russian opposition leaders was reportedly gunned down near the Kremlin in Moscow just days ahead of his planned anti-war demonstration.
Homeland Security shutdown: What you should know
The House failed to pass a bill to fund the Department of Homeland Security. Here's what you need to know.
Ukraine's gas problem
Ukraine's state-owned natural gas company, Naftogaz, is in the middle of a payment dispute with Russia's gas giant, Gazprom.