Yes, David's knowledge in politics is very helpful for this project. Because most of fake news are political and related to politics, that why this will be main area which need fake-news killing.
Other areas which seems important to be me is show-business and businesses of all types (including ecommerce and blockchain area)
You can like it or not, but may people when hear "bitcoin" think about some ponzi scheme or a bubble, and stories such as Silk way or some bitcoin-scammer are still popular