But Sony has long wrestled with how to build devices that let consumers download and copy music without undermining sales in the music labels or agreements with its artists.

Museum officials have long wrestled with ways to revitalize the model and expand its possibilities.

And companies that produce cigarettes and other products have long wrestled with the question of how to separate those tobacco-related operations and the liabilities they represent.

It has long wrestled with polluted areas and recently sought to set new standards in environmental restoration.

Statisticians have long wrestled with the problem of measuring deflation in this industry, where quality is improving rapidly and new products are frequently introduced.

Julie Bindel: We've long wrestled with the social connotations of a tan.

Engineers have long wrestled with the problems of safe guarding equipment against RFI.

Historical linguistics has long wrestled with the idea of a single original language.

"I've wrestled with the decision long and hard," said Samuelson, who holds the American best time of 2 hours 21 minutes 21 seconds.