Fresh Air

Wallace Daniel Pennington grew up singing. His father played guitar and his mother played piano, and by the age of 9, the young man had a guitar of his own. The family attended church on Sunday and Wednesday each week, and to this day, Dan Penn says he remembers the entire Methodist congregation belting out hymns.

The documentary 20 Feet From Stardom, which explores the world of rock 'n' roll's backup singers, opens to the soundtrack of Lou Reed's "Walk on the Wild Side." Reed sings half the refrain — "And the colored girls go, doo do doo do doo" — until a chorus of backup singers pick up the "Do doo" line. At first these women sound far away, but as the chorus progresses, their voices get louder, less produced and polished, more real and intimate.

No, you aren't imagining it: There is indeed less leg room on some airplanes than there used to be.

"Back in the old days, probably 20 years ago, the tendency was to have about 34 inches," says Mark Gerchick, a former chief counsel for the Federal Aviation Administration. "Now the standard is about 31 inches in the United States. ... Some of the low-cost airlines have tightened that up to about 28 inches, which is now approaching the limits of anatomical possibility."