What it means to call the bombing of Iran's embassy in Beirut 'sectarian violence' (JMD quoted on Global Post)

Shia women mourn during the funeral of four Iranian embassy security guards who were killed in the suicide attack outside the Iranian Embassy in Beirut. Thousands of people turned out to mourn for the guards, all of whom were members of Lebanon's powerful Shia movement Hezbollah, which is also backed by Iran and is fighting alongside Assad's troops agai…