I think that the chance of Daesh infiltration into European countries, by their hiding among Syrian refugees is considerably higher.
So some of the European Leaders are not engaging in purely political fear-mongering then? It could be described as practical politics.
That is, politics which view a situation and then pass corresponding laws.
If their purpose is infiltration for purposes of terrorism, then they are not refugees, they are terrorists.
But that would still give populaces an equal cause for alarm concerning refugees.
I myself feel no need for alarm because I think these terrorist events will happen at frequencies and causations that are unaffected
by influxes of refugees. Even influxes of refugees with or without infiltrators.
It's math and statistics and probability.
Basically if we view the next 20 years and add that in with the terror actions of say the past 20 years, will refugees(or terrorists disguised as refugees) have any discernible
impact on the numbers.
I'm definitely betting no.
However, if I'm wrong then the fear mongerers were right.