January 29, 2012

Sales of GPS tracking devices, for a variety of largely unregulated uses, are growing fast, raising new questions about privacy and testing a legal system that has not kept pace with technology.

Sheldon Adelson, who presides over a global empire of casinos, hotels and convention centers and is by some estimates worth as much as $22 billion, is a large financial source for Newt Gingrich.

Zbigniew Brzezinski’s book “Strategic Vision” surveys current global affairs and assesses a hinge moment in time when the world’s center of gravity is shifting from the West to the East.

The singer-songwriter Miranda Lambert’s “On Fire” tour includes songs from her new album, “Four the Record.”

As Showtime edges closer to its competitor’s subscriber numbers, HBO is ready to counter with a spate of big projects over the next six months.

Sean Penn, star of Paolo Sorrentino’s “This Must Be the Place,” about a rich, depressed 1980s rocker, discusses the film, his family life and his relief work in Haiti.

Its first chunk of investor funding is almost gone, and DreamWorks, which garnered 10 Oscar nominations this year from two of its films, must find more, or reduce its ambitions.

A deal that would erase $130 billion in debt owned by private creditors is expected within days, while Greece’s government positions itself for a second bailout.

Focus! 2012, the Juilliard School’s venerable new-music festival, celebrates the 100th anniversary of John Cage’s birth with a six-concert series.

Opera Lafayette, the Washington group, lovingly resurrected and performed “Le Roi et le Fermier,” which Marie Antoinette and her courtiers performed at Versailles in 1780.

When the new labor agreement was reached in August, the N.F.L. and the players union were optimistic that testing would begin during the season.

Corrections appearing in print on January 29, 2012.