i'm bill whitaker. we'll be back next week with another edition of "60 minutes."sover, and a peaceful orthodox holy week. lactaid is 100% real milk, just without the lactose. tastes great in our iced coffees too. which makes waking up at 5 a.m. to milk the cows a little easier. (moo) mabel says for you, it's more like 5:15. man: mom, really? tom hanks: if you close your eyes and think of california, you can't help but picture the waves, the sun and the sand. and if you listen closely over the crash of the surf, you can hear a guitar riff and the vocal harmonies of three brothers who grew up singing in the south bay. in 1961, those brothers-- brian, carl and dennis-- their cousin mike and their friend al formed a band called "the beach boys." they weren't just making music. they were exporting good vibrations to the rest of the world. for those of us lucky enough to grow up in california, they were the soundtrack to our lives, blaring from the transistor radio on the beach blanket, pumping from your car as you pulled into the diner for a late-night burger, and turn