and in 2013, he and his wife marcelle met adriana perez, the wife of one of the five cubans in u.s.. >> leahy: she said to marcelle, "i love my husband the way you love your husband. i may never see him out of prison. i want to have his baby. will you help us?" >> rieser: we talked about it, and if there's something that we can do that the cubans care about that isn't... doesn't cost us anything, why not do it? i talked to the bureau of prisons. i talked to the state department. it became clear that there was only one option, and that was artificial insemination. >> pelley: so rieser arranged for a special delivery from the u.s. prison to a clinic in panama. adriana perez became pregnant, and a new day in cuban relations was born. >> rieser: i think that was reflected in the conversations that the cubans were having with people in the administration, also. they each remarked that the tone had changed, the... just the way they talked to each other was better. >> pelley: secret talks, of a different tone, went on for months. gross had no idea. he told his family he would not live anot

adriana perez became pregnant, and a new day in cuban relations was born. >> rieser: i think that was reflected in the conversations that the cubans were having with people in the administration, they each remarked that the tone had changed, the... just the way they talked to each other was better. >> pelley: secret talks, of a different tone, went on for months. gross had no idea. he told his family he would not live another year in prison. then came a rare phone call with his wife. >> gross: and she said, "alan, we're never going to talk like this again. you get it?" ( laughs ) i got it. i got it. i got it. >> pelley: she couldn't say it in the clear on the phone. >> gross: no. but she was very clear in her wording, in her verbiage, that i was coming home. >> pelley: the next day-- december 17, 2014-- two planes landed in havana, one with the cuban prisoners, the other with senator leahy and judy gross. later that morning, president obama announced the trade, which also included an unnamed cuban who had worked for u.s. intelligence. diplomatic relations were reestablished after more