Just as a footnote to one contention

Via Deutsche Welle (the Voice of Germany) on Friday comes word that

[a] South African court on Thursday charged two German men who live in the country with illegally exporting equipment used to enrich uranium needed to make nuclear weapons.

Thursday's double arraignments came one day after Gerhard Wisser, 66, and Daniel Geiges, 65, were arrested by authorities. The men are alleged to have been involved in an international nuclear smuggling network linked to Abdul Qadeer Khan, the founder of Pakistan's nuclear program. Last week a South African businessman was arrested on related charges. ...

Prosecutors believe Wisser served as the middleman in the operation, passing on illegal equipment to a network based in Dubai to supply Libya with gas centrifuge equipment used for uranium enrichment. ...

Reports said the arrest of the men in South Africa took place in cooperation with security agencies from Europe and America.

I'm going to leave aside the always-important issue of "innocent until proven guilty" for the moment to point to something else:

"Patient police work of effective investigation and intelligence has done and will do more to oppose terrorism than all our bombing sorties combined."