GREETINGS Comrade Popov was taking trips to various cities. From Warsaw he sent back a postcard: 'Greeting from Free Warsaw.' From Czechoslovakia on the next trip he wrote: 'Greeting from Free Prague.' He traveled on to Bulgaria and wrote back: 'Greetings from Free Sofia'; and then to Hungary, writing a card back: 'Greetings from Free Budapest.' Finally he reached Vienna and wrote his last card: 'Greetings from Free Popov.'