Here's an excerpt from the press release:

The BMW Group has informed the NHTSA that it will be proceeding with a customer notification to recall certain Cooper and Cooper S vehicles. The recall affects approximately 5100 vehicles which were produced between 9/25/2002 and 11/14/2002. The implementation of the recall will be conducted as soon as the repair procedures are finalized (approximately 2 weeks). At that time, a Service Information bulletin will be published and official customer notification letters will be mailed. The repair will consist of replacing both rear lower strut mounting bolts.

You can find more information here. Only 5100 cars are affected and It looks like a very simple procedure that should only take 30 minutes.