earlier egyptian fighter jets roared over the city minutes before a curfew went into effect. but thousands of protestors remained outside. demonstrating into the night. opposition leader dr. mohamed al bardai joined them and echoed the message for mubarek to step down after 30 long years in power. looters broke into stores and burned vehicles overnight. reporter: what is this? where are we living? is this like a country? reporter: state t.v. showed what it said are dozens of inmates captured after they broke out of prison. but many more are still free. tanks guarded cairo s museum where the famous king tut exhibit and ancient mummies are on display after looters tried to storm in. the state department issued a travel warning sunday for american citizens in egypt recommending they leave as soon as possible. now the u.s. embassy in egypt says it is making arrangements to begin flying americans out monday. secretary of state hillary clinton urged the government to maintain l