I think the Americans are treading very carefully here. Syria is very important to them and that's that end of story. As for Hezbollah not denying or confirming they have them what kind of stupid policy is that? Ambiguity? Opacity? Why can't they just tell the truth!!
3 killed in Kashmir after Pakistani, Indian troops trade fire (AP)
from the article: State Dept.: U.S. unsure whether Syria sent missiles to Hezbollah