Wars cost money, military action is not cheap. In other words, 'If we go in and sort this out, what can we get back to cover the cost of going in, in the first place". Its a sad fact but true. Theres not enough natural resources to exploit to cover the cost.
Report: Man detained at Newark Airport after entering secure area, prompting evacuation (Haaretz)
from the article: Assad forces mull use of chemical weapons in Homs, opposition says