Heard the same from multiple sources too. The ISIS and Muslims around the world are creating a shoot Muslims first, ask questions later atmosphere. I have no doubt they would instruct several Muslim families to wear full regalia with hijabs and all to large events to attract attention and draw gunfire and sacrifice them for public sympathy. I say better to shoot one Muslim if there is any doubt than to have thousands of Americans killed from one bomb blast. If they are going to play that way we might as well make it worth the lawsuit and our lost time.
If you see a Muslim at a community celebration event, you can assume they are there to do harm. I’ve attended parades and festivals in a small city that is about 20% Somalian. Even though the events are held in areas where the Somalian population is concentrated, I have never seen even one participate in any community event. They do not assimilate and join in festivities. They simply disappear from the area.
I would flee if I saw even one at a parade.