It provided her marriage and her career; she met her husband in Yan'an - the revolutionary base - and learned from him how to take pictures.

All three countries are now plausible bases for potential terrorists.

But it surfaces in other ways too, like not taking responsibility for moving work forward or punting in favor of trying to reach consensus.

He is slowly expanding his media empire, and thus name recognition, from his Houston base: he recently bought a radio station in Dallas, and will probably buy more elsewhere in the state.

Mao also began preparing for the establishment of a new China, well away from the front at his base in Yan'an.