Chinese/Russian Subs Prowling East Coast, Atlantic

In a press gaggle today, a member of the media asked Secretary of Defense Mattis:

Q:  Mr. Secretary, you stated you’re watching submarines in the North Atlantic and elsewhere.  But are Russia and China putting more submarines out to look at the United States than they have since the Cold War?   

SEC. MATTIS:  Yes, we always keep an eye on the — on the submarines at sea.  And I’d prefer not to say anymore than that.  Thanks.