Got email from USCIS. My PD is Oct. 2004 (both 140 & 485), so they have checked 20 months.
My lawyer said maybe USCIS considers my job a highly secure one (not true), and this check takes 3 months or so. But I believe I got stuck in the name checking. My lawyer will write a letter to USCIS, but I don't expect much.
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The status of this service request is:
The processing of your case has been delayed. We are currently awaiting the results of required security checks on this case. These background checks are required of all who apply for the immigration benefit you are seeking. We will make every effort to make a decision on this case as soon as the security checks are complete. If you do not receive a decision or other notice of action from us within 6 months of this letter, please contact us by calling our customer service number provided below.
If you have any further questions, please call the National Customer Service Center at 1-800-375-5283.
Please remember: By law, every person who is not a U.S. citizen and who is over the age of 14 must also notify the Department of Homeland Security within 10 days from when they move (persons in "A" or "G" nonimmigrant status are exempt from this requirement). If you have moved, please complete a Form AR-11 and mail it to the address shown on that form. If you do not have this form, you can download it from our website or you can call the National Customer Service Center at 1-800-375-5283 and we can order one for you. If you move, please call us with your new address information as soon as your move is complete. If you have already called us and given us this information, you do not need to call again.