California shooting shows security vulnerabilities on buses
By MICHAEL TARM and STEFANIE DAZIO, Associated Press LOS ANGELES (AP) — Would-be plotters bent on staging an attack aboard a passenger plane know they've first got to pass through a gauntlet of security measures at an airport, from body scans and spot interrogations to pat-downs and even close scrutiny of their shoes. But a shooting that killed a person and wounded five this week on a Greyhound bus