and so we really struck gold with trigon in moscow. >> trigon and i never met. once i went to put down a package in the woods and i looked up and a long ways away like across two streets there was a man standing there. i thought, that is trigon waiting for the delivery of his package. he's as curious as i was. i knew that i could not leave that package there on the ground without watching it. so i sat down in a bush and i drew my legs close up underneath me and i waited for him to come into the woods. as he walked down the path he was about four feet away from me. my heart stopped when i saw him as i was afraid he would see me sitting there in the bush, but he didn't see me. he walked to the package and picked it up and left a package in the same place for me. that night, i was as close to him as i would ever be. >> we were running with trigon for a little bit over two years. it was unbelievably productive. until about the spring of '77. >> in april, i went to pick up a dead drop as i always did in the same place near the lamp pole. nothing seemed different abou