Retired Catholic bishop endorses health care bill   Tokyo stocks fall in morning on selling for quick gains after rally+   Toyota tells regulators weighing fix to 1.2 million Corollas   Authorities: Prius seen near Border Patrol vehicle   Universal Studios theme park opens in Singapore+   First 'American Idol' finalist booted   LEAD: Japan's big-firm business sentiment down in Jan.- March quarter+   LEAD: U.S., Japan begin debate on security issues including nuclear umbrella+   IBM Japan group allegedly failed to declare 400 bil. yen in income+   Domestic violence cases hit record 28,000 in 2009+   Reports to Net watchdog on illegal content up 95.3% in 2009+   EPA: More pets injured by flea and tick products   Senate votes to change cocaine sentencing rules   New password-stealing virus targets Facebook   U.S., Japan begin debate on security issues including nuclear umbrella+   Senate votes to change cocaine sentencing rules   Obama picks up new support for health bill   Tokyo stocks open lower on selling for quick gains after rally+   Japan's big-firm business sentiment down in Jan.- March quarter+   Fear grips Mexican border families amid violence