If this isn't a joke, then it's quite the confession...

Rabbi David Saltzman, member of the Chabad synagogue in Brooklin, openly talks about the tunnels their communities built all over the US. According to him, they're used for spying, performing blood rituals, for "goy conversion therapy" and many other things.

This interview is almost 2 years old, yet somehow I bet very few here know about it: https://www.youtube.com/watch?v=EkgEqI4DVfY