The cyberattack late last year against Sony, attributed by the US government to North Korea, has highlighted the issue of international norms — especially those related to impermissible actions in cyberspace and permissible actions in response to them.  For the United States to effectively advance norms it must balance secrecy and transparency as well as build and sustain credibility.

Hoover fellow Michael McFaul speaks to Alex Witt about how opposition leader Boris Nemtsov’s murder might affect Russia’s political climate.

According to Putin's spokesman Dmitrii Peskov, the Russian President considers that the murder of opposition leader Boris Nemtsov was a contract killing with "all the signs of a provocation."

Crowds of people, some with tears in their eyes, flocked Saturday to the spot on a bridge in the shadow of the Kremlin where prominent opposition figure Boris Nemtsov was shot dead hours earlier, in what appeared to be a targeted killing.