What background checks are done for the renewal of an expired green card ...

i.e. is it a FBI Name check and security check only ?
or is there also a social insurance number background check ...
perhaps credit check ? ... or past income tax return checks ?

I know that they take biometric information, but is there an interview ?
Do I need to show proof of residency or other information ?

wow same case here I send my green card to be renew on November 2006 and biometer on Feb. 2007.i have no have no idea what they are checking my background is clean as far as I know but even it does not take 1 year to get that information I have been calling USCIS all I hear is ITS PENDING. ITS OUT SIDE OF THE PROCESSING TIME USCIS WEBSITE HAS POSTING FOR I-90 RENEWAL BEEN WORKED AS AUG 2007 ITS MARCH 13/2008 NOW THEY ADVISE ME THEY NEED TO SEND A REQUEST TICKET THAT DOES NOT HELP AT ALL CAUSE NO ONE CARE TO LOOK AT TICKET REQUEST FOR DELAY PROCESSING THEY WILL TELL YOU YOU CAN GET AN EXTENSION AT A LOCAL USCIS OFFICE BUT THAT IS NOT TRUE THEY WANT YOU TO RENEW A PASSPORT B4 GETTING ANY INFORMATION I REALLY HATE THEY WAY THIS USCIS DEAL WORK SO MUCH CARELESS PEOPLE AT A LOCAL OFFICE OF IN HOME OFFICE IS THERE ANY BETTER WAY TO TAKE CARE OF US WITH OUT BEEN TREATED LIKE WE DON'T DESERVE TO BE IN THIS COUNTRY

The FBI is embarking created a $1 billion database of peoples' physical characteristics. It gives the government ability to identify individuals in the United States and abroad.
Digital images of faces, fingerprints and palm patterns are already going into FBI computers. Law enforcement authorities will be able to identify people by iris patterns, face-shape data, scars and perhaps even the unique ways people walk and talk The FBI will keep the fingerprints of employees who have undergone criminal background checks so the employers can be notified if employees break the law.

"Bigger. Faster. Better. That's the bottom line," said director of the FBI. The Department of Homeland Security has been using iris scans at some airports to verify the identity of travelers who have passed background checks and who want to move through lines quickly. There could be multiple records of one person's fingerprints because several companies do, but only a government background check can be used to get a visa, passport, or government job.