AILING STOCK: President Clinton’s vow this week...

AILING STOCK: President Clinton’s vow this week to tighten up the health care industry sent HMO stocks plunging. Hardest hit in Orange County was Cypress-based PacifiCare, down 36%. Its chief executive officer, Terry Hartshorn, calls it both “disturbing” and “amazing.” . . . “There’s really no rationale for it,” says Hartshorn, “because there’s no basic change in the industry; growth is up.” He adds, though, that some investors say it’s a great buy now, which means they have faith it will go back up.