Feds Probe October '09 Toyota Crash That Killed Four

Six months after a 2-car crash that killed four (including a Harvard professor), the NHTSA says it's launching an investigation.

The reason? The car that caused the crash by swerving into oncoming traffic was a Toyota Highlander. And while local authorities say they were unable to pinpoint the cause, the Feds say they want to see if a sticking gas pedal might be involved.