Just a week after President Bashar al-Assad of Syria assured a top State Department official that his government was not sending sophisticated weapons to Hezbollah, the Obama administration lodged a confidential protest accusing Syria of doing precisely what it had denied doing.

“In our meetings last week it was stated that Syria is not transferring any ‘new’ missiles to Lebanese Hizballah,” noted a cable sent by Secretary of State Hillary Rodham Clinton in February, using an alternative spelling for the militant group. “We are aware, however, of current Syrian efforts to supply Hizballah with ballistic missiles. I must stress that this activity is of deep concern to my government, and we strongly caution you against such a serious escalation.”