Here is an important notice from the US Embassy in Cairo:

The U.S. Embassy in Cairo will resume visa services to the public on April 10, 2011.

Non-Immigrant Visas (NIV)

Vodaphone will contact non-immigrant visa applicants whose appointments were cancelled because of the suspension of visa operations to reschedule their appointments. Applicants may also reschedule a cancelled appointment by contacting Vodafone directly at 0900-70-600 from a landline or 2100 from a Vodafone cell phone.

All applicants who wish to schedule an appointment for the first time must follow the instructions on the Embassy’s website at http://egypt.usembassy.gov. Students, exchange visitors, and those with cancelled appointments will be given priority in scheduling. All applicants should understand that it will take time to clear the visa interview appointment backlog. Travelers should not purchase tickets or make other irrevocable commitments until they have received their visas.

Application fees and the requirements to qualify for a visa remain unchanged. All applicants must demonstrate convincingly their intent to return to Egypt following a temporary visit to the United States.

Immigrant Visas (IV)

The Embassy will resume interviews for all categories of immigrant visas on April 10, 2011…