I learned how to use email from the extremist organization that I used.

我学会了如何使用电邮从极端分子组织的活动中。

youdao

And I think it's important to hold that in mind, because it means that the central question in this issue - which is whether this was part of a larger conspiracy, whether this reflects a new tactic by an extremist Islamist organization that has now decided to target soldiers on the streets of the UK - that question remains unanswered.

NPR: Violence In Europe Leaves People Fearful