Maybe I'm the crazy one for still using Facebook, but I am part of several groups where Facebook is the only way that notifications are sent out for group events or just sharing in a common interest. But on one of those "group" pages, someone posted a photo from 9/11/01 of the World Trade Center on fire, before its collapse, with text saying "never forget". Most of the subsequent comments supported that sentiment, but there were a few asserting that the entire 9/11 attack was "an inside job" by "the government", etc, etc. Responding to these crazies and asking for their evidence of this, or why the "government" would want to do this, or how the thousands supposedly involved in this conspiracy have been able to keep it secret for 20 years, and similar comments go unanswered other than to elicit statements such as "You must be a fool to think that this was other than an inside job". I guess there have always been a lot of crazy people around, but the internet makes it more apparent to the rest of us.