here is the answer Bahar
Dear Bahar
this the reason of the delay :
Security Update for Visa Issuance and Revalidation
Security checks are resulting in significant delays in visa issuance, sometimes upwards of two months. Foreign nationals should be especially mindful of the fact that their visa may take anywhere from two weeks to two months or more to be issued and should plan their travel accordingly. These unprecedented delays stem from the need to run security checks. If your nonimmigrant visa application is selected and subjected to an in-depth security review – a “Visas Condor” check - there is nothing that the Consulate will be able to do to expedite your application and you will be “stranded” abroad until your visa is issued.
Applications for visas may be filed with the U.S. Consulate having jurisdiction over your residence (by virtue of your foreign residence), with a third-country Consulate that accepts jurisdiction over your application, or with the visa revalidation office in St. Louis (if you previously held the same visa in your passport and you wish to have it revalidated).
We previously advised that nationals of 26 “Watchlist Countries” (listed below) would be subject to additional security checks and that delays would occur for visa issuance for these nationals. These delays run approximately 3-4 weeks (in addition to the Consulate’s standard processing times). This Newsflash will provide an update based on information recently received from various Department of State sources.
Watchlist Countries include: Afghanistan, Algeria, Bahrain, Djibouti, Egypt, Eritrea, Indonesia, Iran, Iraq, Jordan, Kuwait, Lebanon, Libya, Malaysia, Morocco, Oman, Pakistan, Qatar, Saudi Arabia, Somalia, Sudan, Syria, Tunisia, Turkey, the United Arab Emirates, and Yemen.
Visa Issuance at the Consulate
Individuals from Watchlist Countries should expect that their visa application will take at least 24 business days for the Department of State to do internal background checks.
In addition, the Department of State has an additional, in-depth security check – the Visas Condor check – which may be triggered for ANY applicant (not just Watchlist Country applicants). A Visas Condor check will result in significant delays, sometimes exceeding 2 months. The Visas Condor check may occur if the applicant has any arrest record (however minor) or even if the applicant’s name is similar to that of someone else with a criminal history. Although an individual may previously have been issued a visa without incident, that same individual may now face an additional delay, in some cases up to 2½ months. If you have ever been arrested or have any criminal convictions, however minor, or any concerns about the answers provided on the visa application form DS-157, we urge you to contact competent legal counsel to discuss these issues before travel without a valid visa.
this is the full
link :
http://www.immigrationlaw.com/newsletters/2002vol7.html#Visa
GOD with us
znaty