On 3/22/2021….

A [R]enegade captain directed an [E]ver[G]reen ship to block the Suez Canal.

Define Evergreen.

"used to describe a legal agreement that will automatically renew (= start again) unless one of the people or businesses involved officially ends it."

When do you call a plumber?

Perhaps when there is a clog, or a blockage of sorts…

Ongoing investigations require…

Renewal. See Evergreen definition.

https://www.justice.gov/archives/ag/attorney-generals-guidelines-general-crimes-racketeering-enterprise-and-domestic#authorization