With the shoot-down of Malaysia Airlines Flight 17 over Ukraine turning a local civil war into a U.S. confrontation with Russia, U.S. intelligence veterans urge President Obama to release what evidence he has about the tragedy and silence the hyperbole.

Russian tensions are building in a precarious way over Ukraine, and we are far from certain that your advisers fully appreciate the danger of escalation. The New York Times and other media outlets are treating sensitive issues in dispute as flat-fact, taking their cue from U.S. government sources.

Twelve days after the shoot-down of Malaysian Airlines Flight 17, your administration still has issued no coordinated intelligence assessment summarizing what evidence exists to determine who was responsible - much less to convincingly support repeated claims that the plane was downed by a Russian-supplied missile in the hands of Ukrainian separatists.

Your administration has not provided any satellite imagery showing that the separatists had such weaponry, and there are several other “dogs that have not barked.” Washington’s credibility, and your own, will continue to erode, should you be unwilling - or unable - to present more tangible evidence behind administration claims. In what follows, we put this in the perspective of former intelligence professionals with a cumulative total of 260 years in various parts of U.S. intelligence.

We, the undersigned former intelligence officers want to share with you our concern about the evidence adduced so far to blame Russia for the July 17 downing of Malaysian Airlines Flight 17. We are retired from government service and none of us is on the payroll of CNN, Fox News, or any other outlet. We intend this memorandum to provide a fresh, different perspective.

Obama Should Release Ukraine Evidence