Weapons to the Syrian Rebels

    I see that Pres. Obama has approved the sending of weapons to the Syrian rebels. There seem to be no other details as yet, but it can properly be assumed that it will be at a financial expense to the American taxpayer.
    What advantage does this action have for the American people? I can think of none.
    What danger does this action present to the American people? Other than the initial cost to the taxpayers, it is also a first step in a move to engage us in another war.