Vice President Biden said Tuesday that the treatment available to many Americans with mental health problems is "unacceptable," while announcing $100 million in new federal funds to expand community-based services and treatment centers.

The Obama administration, through the 2010 health-care law and other initiatives, has tried to focus attention on the inadequacy of mental health and addiction care for many Americans diagnosed with those problems. The issue gained urgency after the school shooting in Newtown, Conn., a year ago, a crime carried out by a mentally disturbed gunman.