Now that the rallies in the UK are over, I can post this. All of today's "Save Our Children" marches, without exception, were organised in private Facebook groups within four or five weeks. Literally all of them 
It's the exact same story in the US too. All of these "Save Our Children" marches currently taking place in American towns and cities were organised in private Facebook groups. Florida, Michigan, California, Arizona, you name it
Here's private Facebook groups for marches in Texas, Pennsylvania, Ohio and Montana. We could go on and on. @nickbackovic and @TheOndrakGuy have a full list of these groups which were used for planning today's marches
