They must have put bromide in their tea
Segregating the sexes isn't going to stop a load of horny teens from getting it on, one way or another.
I can see how games mad teens might be good for piloting spacecraft, as they could be more fearless (as well as disposable), but as commanders? no way!
I can see how military types might think the lack of vocal cords would prevent the buggers - er, formics from communicating, but (civilian) biologists (and anyone else) would realise this is nonsense.
Oh, and I was rooting for the 'ants' all along - I hate all that US marine "SIR let me kiss your ass SIR" bollocks.