Hbow 221g effects my case? SIV-special immigrant visa for Iraqi interpreters?

I am an Iraqi interpreter, I been working with American Army almost for 3 years, under SIV( special immigrant visa) I'm entitled to obtain visa, but unfortunately in March 2011 during the visa interview the Consular handed me 221g refusal form, the interpreters with American army are entitled to the visa under President G.W,BUSH determination. looking forward to hear from you with regards