This news from Baltimore: A lawyer known for suing the tobacco and asbestos industries is now going after cellular phone companies, alleging in new lawsuits that the companies have known about health risks for users of the phones but failed to warn them. Peter Angelos filed class-action lawsuits yesterday in Maryland and three other states. The suits seek to force the wireless industry to cover the costs of headsets that Angelos says would protect users from possible radiation hazards. The suits claim there are links between cellular phone use and a host of health problems, including damage to basic brain function.