Why don't we know the names of the American hostages in Gaza?

[putnam6]

Boy that is sure a good question!!!!  This whole thing smells.
Like so damn many other things in the.  Way too many things seem orchestrated.   
Our government is not working for its people anymore.

It is, saw it mentioned elsewhere 

All I know is the hostages' names were prominent in the Black September/Munich debacle, the Iran hostages hell even The Achille Lauro we knew their names.

I can think of a few semi-legit reasons for this but probably more than a few, less than legit reasons. Find it hard to believe MSM is censoring itself, though in this day and age, it is possible.

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Another thing for which I haven't seen an answer is how they know who was kidnapped.

Did Hamas give a list of hostages? Or are they assuming the missing were kidnapped?

I'd think their numbers come purely from Israeli sources, that's the thing with facial recognition tech and the attack being filmed by numerous Hamas members and CCTV. 

IIRC correctly even in some of the long-range videos Israel was able to deduce who the victims were, through various methods. Like a lot of tech advances, you have to take the good with the bad.