After attacks of September 11,2001, taking a visa from USA is not very practical anymore. Visa applications processing slowly and deeply so it s very important to apply for your visa much more before than the time that you need to be in the U.S.

Following information taken from USA Visa Department official website;

Visa applications are now subject to a greater degree of scrutiny than in the past. For many applicants, a personal appearance interview is required as a standard part of visa processing. Additionally, applicants affected by these procedures are informed of the need for additional screening at the time they submit their applications and are being advised to expect delays. The time needed for adjudication of individual cases will continue to be difficult to predict. For travelers, the need for an interview will mean additional coordination with the embassy or consulate is needed to schedule an interview appointment. We recommend that individuals build in ample time before their planned travel date when seeking to obtain a visa.

We recognize that these delays are having an impact on visa applicants, and we have already had success streamlining the process, consistent with our security and legal responsibilities. The State Department is working hard with other government agencies to rationalize clearance procedures in ways that continue to protect US borders, our first priority, while facilitating legitimate travel.

We trust that affected applicants will understand that this waiting period is necessary as we strive to make every effort to ensure the safety and security of the United States for all who are here, including foreign visitors.