The least-noticed sentence in Michael Flynn’s plea agreement with special counsel Robert Mueller may also be the most important one.

Section eight of the deal reached by Donald Trump’s former national security adviser in the inquiry into Russian meddling in the US election is entitled “cooperation”. It specifies that as well as answering questions and submitting to government-administered polygraph tests, Flynn’s cooperation “may include … participating in covert law enforcement activities”.

This article originally appeared on The Guardian. Click here to read the full article on The Guardian.