Why are all these terrorists in Europe known to intelligence authorities before they kill?

[thecoalman]

Originally Posted by floridanative10

In France they it seems like every one of these terrorists killing people was known to authorities and was known to have extremist views, they were all "on the radar" and known to intelligence it seems . The manchester bomber was known by both British and French intelligence services and they had information that Abedi had been in Syria.

Because they are one of tens of thousands that are potential terrorists. There is lot of people doing and saying the same things he did.

They need to pick and choose who they think is the most likely candidate because they can't watch all of them. One of these attackers involved with one of these events in France they were keeping a close eye on for years, through shear coincidence he committed the act a few months after they had moved onto someone else.

[Brave New World]

Originally Posted by thecoalman

Because they are one of tens of thousands that are potential terrorists. There is lot of people doing and saying the same things he did.

They need to pick and choose who they think is the most likely candidate because they can't watch all of them. One of these attackers involved with one of these events in France they were keeping a close eye on for years, through shear coincidence he committed the act a few months after they had moved onto someone else.

The Intelligence Services are also hampered by the law, although leaving the EU and possible the European Convention on Human Rights (ECHR) would allow UK Security and Intelligence Services a lot more leeway.

Law and Governance | MI5 - The Security Service

Covert Surveillance | MI5 - The Security Service

Even as we leave the EU they are still ruling on the lagality of our laws, as the article below from two days ago clearly demonstrates.

EU judges may be asked to rule on legality of UK surveillance powers -Guardian

Whare subjects pose a threat to the population they need to be watched and indeed those who pose such a threat should also be denied access to the country in question and where appriopriate such people should be deported.

Detain, deport, exclude: this is how Britain should respond to terror - Colonel Richard Kemp

[floridanative10]

One of the london bridge killers Khuram Butt even appeared in this video from the bbc4 , these guys are openly waving an isis flag and spouting hatred of the west. What are they even doing in the country at all ? The multiculturalism and tolerance of the west is sick



https://www.youtube.com/watch?v=yM2p5kqiZ4A

[floridanative10]

As a twitter user - Sam White commented; 'Jihadis are cleverly evading the authorities by appearing in documentaries about jihadis with the word jihadi in the title'.