Obama: Syria Gassed Its Own People Last Week

That's the rattling of sabers you hear

President Barack Obama says the U.S. has concluded that the Syrian government carried out a large-scale chemical weapons attack against civilians last week.

Obama says the U.S. has examined evidence and doesn't believe the opposition fighting the Syrian government possessed chemical weapons or the means to deliver them.

Obama says he hasn't made a decision about how the U.S. will respond.