Again, I'm not talking about actual effectiveness. I'm talking about those who were commenting on "sending a message," RoE, tensions, warnings, etc. Sorry if that wasn't clear.
Although I don't know for sure that the CWIS carried are Block 1B, but I'm assuming they are. That doesn't mean that there's not a lot more to an encounter than shooting.
I expect that if they are not all Block 1B, considering the mission and threat, at least one of the ships will be anytime they enter that area.
One thing I do know first hand: the officers, chiefs and petty officers on our warships are the finest in the world, and I trust them 110% to make the right decision in these tight corners. The lessons of the Cole, Stark and Vincennes have not been forgotten for a nanosecond.