Each of those various countries probably figure their military security (and relative secrecy) is more important.
I do recall that when the Allies broke some codes, they had to allow some people to get killed, in order to keep the enemy from knowing they broke the communication code.
In a way, it is probably like that with these various military operations in these various countries.
I am certain that people (probably less than 20) in the US government know exactly where the plane is, either on the ground or below the water. But, to share that information would tip our hand on the capabilities of the systems in place. This is a shame for the families involved, but this is just the way that things are.
“I do recall that when the Allies broke some codes, they had to allow some people to get killed, in order to keep the enemy from knowing they broke the communication code.”
Maybe this dilemma was faced by Churchill...maybe not:
http://www.winstonchurchill.org/learn/myths/myths/he-let-coventry-burn
I’ve read about that and the steps they had to take to mask some of their responses in some cases.