Modifications? Let's see, a Boomer (yes, I know), spends roughly 180 days under the water. That's six month to the DU trolls reading this thread. Six months...hmmm, a pregnancy and premee (pre mature birth) could happen...what "modifications," are they talking about?
5.56mm
I'm sure the Ohio boats will lose a few vertical launch tubes to clear space for a lactation room, for starters. We're cutting the number of nukes, remember?