We have satellites that CAN see man-sized bombs being loaded into airplanes, and they can see it in the dark. (They can actually read a license plate from space.) I bet they can even see it inside a hanger, unless the hanger was specially built for stealth. I think there is very adequate evidence that it was a sarin gas attack (in the form of dead bodies) and that the Assad regime delivered the weapons.

Making sarin is not that difficult. We would have to bomb them back into the stone age to prevent that. No reason to think this sarin was the old sarin that was supposedly destroyed by the Russians. Which brings up an interesting point: The Russians might be very pissed-off at Assad, since they claimed to have destroyed the regime's chemical weapons. Now this: Did they not destroy them all? Did they know there were still some available?

Another very interesting point: Trump did not tell anybody in Congress, but he did warn the Russians who very likely called up Assad immediately. So what exactly did we blow up? An empty airfield? Was warning the Russians an act of treason?

Personally, I would have liked it if he had got authorization from Congress, and then taken out EVERY Syrian warplane everywhere.