Imagine 150 fraternity brothers packed into a container the size of a three-bedroom house. Announce you are breaking hallowed traditions by taking away their cigarettes and admitting women. Then lock the doors and push the container deep into the sea, for months at a time.

...As of Dec. 31, smoking aboard the entire submarine fleet will be summarily banned ...

... the Navy has also said it intends to let women join submarine crews by the end of 2011...

... On top of all that, the military is girding for another social revolution that might take some getting used to: allowing gays and lesbians to serve openly in the ranks.