The crowd was filing through the colonnades of the All England Lawn Tennis and Croquet Club when a ticket scalper spotted a possible customer heading for the main gate. Behind his dark sunglasses, the squat little man looked like a London clerk who had slipped away from the office to watch the finals of the 1954 Wimbledon tennis championships.
"Center court seat, sir?" whispered the scalper.
The little man smiled. "No, thank you," he said. "I shall have to stand during the match."
The man in dark glasses was Jaroslav Drobny, the Czech exile...