From Mike Tobin, Fox News:  Sen. Mark Kirk, R-Ill., plans to present an ultimatum of sorts to the Obama administration.

On Wednesday, Kirk will meet with Deputy National Security Advisor Denis McDonough. In that meeting, he will explain that unless the administration produces a written agreement that sensitive U.S. missile defense data will not be provided to Russia, Kirk will block the appointment of the Ambassador-Designate to Russia, Michael McFaul.

"My hope is that we can just work this out where they commit not to deliver classified missile defense data to Russia," said Kirk. "And then I think he (McFaul) should go to Moscow."

The data in question is about the U.S. Navy’s Standard Missile 3, or SM-3. According to Kirk and several reports, the Obama administration was proposing to offer the Russians data on the burnout velocity (VBO) of the SM-3 missile.   (photo: AP)

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