I've been to that MARINE CORPS STATUE at least ten times. There are no restrictions I recall. My Son was last in the Marine Corp Marathon, and civilians are free to go everywhere around it. The Marathon Finish Line was just across the street.
As for anyone DARING to bother that one. How much do they CHERISH being Alive to tell about it.
Those Marines (as you must know), HAVE AS MUCH PRIDE as they DO STEEL GONADS!
It's not nice, or healthy to DEAL with the SEMPER FI Bunch!
SEMPER FI GUNNY!