I'm not afraid of terrorism, are you?

[henryp]

And what does that have to do with Salzburg?

I think you are misreading the original post?  4 people posing as Syrian's refugees (maybe some other designation).  They caught 2 of those 4 in Salzburg.  The other 2 made it to Paris, and set off suicide bombs.

The point was that 1) terrorists are blending in with refugees. 2) they've slipped through screenings and killed people.