Did Federal Policies about Muslims Prevent FBI and BATF Action?

Omar Mateen: What does a terrorist look like?

Who's really to blame for the Orlando shooting? Obviously the shooter, but there was clear evidence he was cooking up a big deal violent event. Was it preventable. though? Maybe not.

The FBI alerted!

Several weeks before the shooting Mateen was engaged in suspicious activity trying to buy body armor, but the store owner and bulk ammo. The store didn't get his name because they refused to sell him anything and apparently surveillance footage wasn't good enough for facial recognition.