What we learned watching Robert Mueller for 18 months

(CNN)Editor’s Note: When special counsel Robert Mueller was appointed to investigate Russian meddling in the US election, CNN, like most news organizations, endeavored to learn what we could about the famously secretive team’s work. So, in addition to other newsgathering efforts, CNN had journalists who stood outside their offices. Journalists often call this a stakeout. Here, the CNN team lays out the backstory of their assignment and how this investment of time yielded big journalistic returns. Even though the stakeouts could be exhausting, there were moments when the full weight of the responsibility would hit us. Often we were the only journalistic eyes and ears on the ground at Mueller’s office — not just for all of CNN, but all …