The issue is not whether Obama is lying about the number of warheads, because he didn’t issue the figure. The number came from the DOD, and neither Secretary Gates nor the uniformed military are about to lie to cover up for the president.
The issue, rather, is what the number 5,113 means. How usable are they? Is the stockpile reliable? How reliable and usable will they be in 5, 10, and 15 years? What are our delivery platforms and do they address potential threats?
And I expect Gates & the military will say what they have been told to say in this regard, or resign, since I doubt they wanted to say ANYTHING AT ALL.
This revelation fits perfectly with Obama’s willingness to give something for nothing. OTOH, the military is classically closed mouth about nuclear capability.