(By Gardiner Harris and Duff Wilson, New York Times) GlaxoSmithKline, the British drug giant, has agreed to pay $750 million to settle criminal and civil complaints that the company for years knowingly sold contaminated baby ointment and an ineffective antidepressant - the latest in a growing number of whistle-blower lawsuits that drug makers have settled with multimillion-dollar fines.Altogether, GlaxoSmithKline sold 20 drugs with questionable safety that were made at a huge plant in Puerto Rico that for years was rife with contamination.