They might or might not think that. The point is, if they were Muslims, then other Muslims already in the US and their allies would be raising hell, getting word out in media, holding demonstrations, and pursuing legal strategies. Remember, they did manage to halt and drastically reduce the impact of Trump's Muslim ban through such methods: it ended up being not a general ban but rather just a ban on half a dozen countries already on an Obama watchlist. The reason the Muslims have allies is because Westerners are always afraid of upsetting the Muslims because everybody knows they'll go crazy.

That's normal procedure. That's why the government had KS Brar lead the attack on Darbar Sahib as well as other Sikh officers. And KPS Gill later.

Any article or more research linked to this finding?

Keep it real pu55y. That's why they have some afeem prior to long journeys. Oh well, at least it keeps juts employed. 

I found another variation of this picture.