The Directorate Future History

I am finding a whole new universe inside a couple of short stories by Poul Anderson:

there was a Solar War;

the Directorate took over on Earth;

spaceships can accelerate to near light speed;

passengers travel in suspended animation;

scientific bases on extra-solar planets up to fifty light years away are being terminated;

four generations have lived in the base on Mithras, thirty three light years away;

Captain Yakov Kahn, who transports personnel back from Mithras, was born before the Directorate took over;

Earth is extremely crowded;

the Ministry of Extraterrestrial Affairs centrum is in Rotterdam which stretches as far inland as a man on a high tower can see;

beginning to read the second story, we are about to learn of a further problem...