My site pulled local event data into an event calendar, since Facebook's discovery of truly local events is shitty at best and useless most of the time. These are all public events at businesses open to the public and the businesses want more people to come. But now Facebook considers public events posted by public-welcoming businesses to be too sensitive of information to share, and that API disappeared overnight in April, with no advance warning and no ability to get it back. It's gone. Completely gone.
Coincidentally, they now have their own app called Facebook Local that shows events near you. I'm sure that has nothing to do with them shutting down that API.
Break up Facebook.