[Kizzy]

Originally Posted by kirklancaster

Fifh Column

A clandestine subversive organization working within a country to further an enemy's military aims.

As Alex says; one person can 'represent' a column in any Country.

I love the quaint terminology - "two radicalised people" instead of good 'ole murdering terrorist bastards though.

Well there's no getting away from the fact they were acting as they thought they should or as ISIS would want.
I'm not convinced of the link between immigration and acts of terrorism though,
many terrorists are Muslim converts or home grown UK and US citizens.
I am aware you didn't say all, yet as proportional representation I don't think the figures for immigrant terrorists would support an accusation of columnists.