How to protect against fake ‘facts’

https://www.washingtonpost.com/opinions/getting-back-to-facts/2017/11/23/ebd6a12e-cfb9-11e7-81bc-c55a220c8cbe_story.html?utm_term=.84496176f812

 

Proposal by David Ignatius: “Just as the provenance of a work of art is established by art historians and auction houses, we need technological tools that will help confirm the provenance of facts.”