Is done constantly. I did it as a hall monitor, a bus duty monitor, a lunch monitor, we constantly monitored student's behavior, their speech and tried to anticipate problems. We were taught to "monitor and adjust". Today we have some political hacks who are niave, or worse, may have communist leanings. Today I heard that a 1950's singer was involved with giving an award to two convicted and executed spies--Ethyl and Julius Rosenberg. Too bad there wasn't enough monitoring going on then.
This fact leads back to the previous question: Are they naive, political hacks or communists?
See above link, and may I suggest Anne Coulter's Treason.