Chinese/Sufi Parable:

“If you lost your key in the house, why are you looking for it under the street lamp?”

“The power is out.”

Banks and other financial institutions cannot monitor every $100 transaction or notice every time someone with a potentially suspicious background rents a truck.  Yet because countering terrorist financing remains the job of treasuries and finance ministries, governments will keep looking in the wrong places.  As the saying goes, ‘If all you have is a hammer, everything looks like a nail.’  As long as these ministries are in charge, that will not change.

Peter Neumann Foreign Affairs, NOV/DEC 2017 at 150

https://johnrubens.wordpress.com/2017/11/02/peter-neumann-and-his-critics-foreignaffairs-novdec-2017-p-144-150