This high-level rationalization for “expanded airstrikes” on Syria really defies commentary, from a News Analysis in this morning’s New York Times:

The American ambassador to the United Nations, Samantha Power, on Tuesday struck a testy note when asked whether there was a legal basis for airstrikes on Syria.

“We believe we have a basis for action,” she said, declining to describe what they were, because, as she said, it would depend on the action taken and under what circumstances. “In the event that action is taken, believe me, we will have plenty of time to engage on it.”

We believe you! Sorry for asking!