‘Looking at something pretty big’: Russia hacked Ukraine company at center of impeachment

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The New York Times reports that Russia hacked Burisma, the Ukrainian gas company that is central to the impeachment of Trump. Nicole Perlroth, one of the reporters who broke that story, tells Lawrence O'Donnell that Russia is also using spies in the "analog world" to find dirt in Ukraine. Perlroth says that DHS had no knowledge of the attack.