Proceeding with Lawyer, is it worth?

[chennai_221g]

I had interview on Aug-2011 at Chennai Consulate, I got Green & Pink slips. In Green slip, they asked about my petition, I-797 form, W2 statements, Bank Statements and Payroll for 2011. In my Pink slip, they mentioned my case number. Still now US Embassy hold my passport for further verification. On the same Interview date, I submit all my original documents to VFS. Within two weeks, VFS returned all my original documents. From beginning, VFS/US Chennai embassy giving status like, my visa is pending with Department of State for Security reason. Even my company CIO sent email to US embassy, they gave same status.

Could you please let me if I proceed with Lawyer, whether we can expedite my visa case from Department of State. Your advice is really appreciated. Please respond your view.

Note: I called DOS, they are also updating the same status.