9/11 Update
NYPD says one of two vans stolen from a World Trade Center contractor has been found.
Police officials had been investigating two thefts and a third in New Jersey because of unconfirmed threats that al-Qaida was planning a car bomb attack. But police reiterated Sunday that they'd found no evidence linking the thefts to a terrorist plot.
Two dark green Chevy vans had been stolen this month from a construction group. The company has been involved in recovery work at the site and is doing roadwork near 1 World Trade Center.