[Veto!]

A preponderance of noticeably light blue jackets. Dark blue too. Maybe that's just what these guys always wear, but I looked it up and discovered that Algerian and Moroccan soldiers, called Zuaves, wore distinctive blue jackets too.

Coincidence? Or should the secret service hire me?

Henceforth Algerians and Moroccans would be assigned to units of the Tirailleurs Algeriens, or Turcos, as they were popularly known, and would wear their own distinctive light blue version of the Zouave uniform.

http://www.zouave.org/1_Origins.html

[caww]

The concerns are that all these young men will jump into ISIS ....remember they’re coming here with no jobs...ISIS recruits them and they happily join in for they have nothing to loose.
They’re mostly Muslim to begin with so it’s an easy jump to obtain a roof over their head and food....not to mention what they see as purpose.

The jackets are more times than not Hoodies. Which we all know are so often used to conceal ones identity.