We have found from sad experience that our own arsenal of weapons for use behind the Iron Curtain is very nearly empty. The pleasant slogans of liberation have had a hollow echo. The diplomatic approaches to a Russian troop withdrawal have not thus far been fruitful. We have been able to do very little through refugee relief or propaganda appeal or by U.N. resolution. We cannot any longer count on freedom to come to Poland and other nations of Eastern Europe by means of dramatic or violent revolution. Our best hope is rather in more nations following the example of Poland.