The Washington Post is reporting that the USSF at this point still plans to let the match scheduled for February 9 go ahead as planned. The US players are scheduled to arrive in Cairo on February 6.
"As of now, we are still planning to play the match," the Post quoted USSF spokesman Neil Buethe as saying. Buethe said the federdation was monitoring the situation.
Tens of thousands of Egyptians are clashing as of this writing in unprecedented protests that have swept several countries in the Middle East and already toppled Tunisian President Zine Abidine Ben Ali. Its hard to see how calm will return to Cairo any time soon.