It depends on what the meaning of ‘is’ is…
Via The Atlantic:
After noting untrue statements that Hillary Clinton made about her use of a private email server and the presence of classified material on that server, Peter Suderman concludes that when the presidential hopeful is called to account for actions undertaken as a public official, “she responds with misleading statements, distortions, convenient excuses, and a general sense of irritation and entitlement—anything, in other words, but the clear and unambiguous truth.” He goes on to charge that she engaged in “risky, unauthorized, and decidedly non-transparent behavior.”
That’s mostly fair. Her State Department had an atrocious record of transparency that made a mockery of freedom of information laws, and she certainly wasn’t authorized to maintain a server in her home that contained classified information.
But was doing so risky?
Perhaps it will turn out that documents on her server compromised national security or otherwise did harm to U.S. interests.