The Marine sitting down looks to me like he is afraid his buddy might lose his cool. Concern for his buddy, not Grab-a$$ JohnJohn.
I totally agree about the seated Marine being on the lookout for his buddy rather than having one iota of regard for Kerry.
This incident reinforces my respect for our Marines (God bless them!).
I want to hear the whole story from these guys.
Notice the diners behind Kerry and the Marines? Backs turned, ho hum.