Nasrallah and CIA spying

Did you see the categorical denial by the US embassy in Beirut regarding the claims by Hasan Nasrallah yesterday that CIA operatives in Beirut tried to recruit two members of Hizbullah?  It was such a clear and categorical denial that it left you with the impression that CIA is not in the business of spying and that it does not at all care about infiltrating Hizbullah.  For a second, I thought that the US government is a charitable organization that only occasionally (daily) drops bombs on people from Libya to Afghanistan.