they're deteriorating. >> stahl: peter ostrovsky's son, jack ryan, was also on that mission. >> ostrovsky prior to the mission, we were speaking on the telephone, and he made the comment that "a.a.v.s sink all the time." they've called them, and he called it, a "floating coffin." >> stahl: do you think he was worried? >> ostrovsky: oh, absolutely. >> stahl: two a.a.v.s broke down and their sons' designated vehicle sprang an engine leak. and yet, the mission was not aborted. what was the drive to go forward with faulty equipment? >> ostrovsky: they're trying to keep a schedule. to stay on time. >> vienna: the safety of our sons took a second place to completing a training mission. this isn't combat. this isn't "got to do it right now." this is training. there should have been an all-stop at many points. >> stahl: but 16 young men crowded into the a.a.vs seen in this video that one of the marines sent his dad. it almost immediately started taking on water-- ankle level; calf level; seat level; as one by one, the a.a.v. systems were failing. >> vienna: the communication system was down. they

. >> sreenivasan: newshour weekend special correspondent simon ostrovsky has been covering ukraine for. in 2019, he caught up with then- presidential candidate volodymyr zelensky, and asked about his foreign policy with russia. >> reporter: you're an actor, with no political experience. >> yes. >> reporter: your country is at war with russia. >> yes. >> reporter: vladimir putin, 20 years at the helm. how are you going to deal with vladimir putin? >> ( translated ): first of all, we will do everything to make sure that vladimir putin never ends up at the helm of our country. the main problem in our relationship with russia is the war. no one has a real answer, how to stop putin. all we can do is continue talks, to achieve a ceasefire. >> sreenivasan: simon ostrovsky joined me earlier today for more on the current russian invasion. i wonder what you think now of president zelensky, who is going out of his way to make sure that his people know that he is not fleein that he is staying put, and he plans to fight? i mean, you've got the mayor of kyiv also doing the same. what is the message

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simon ostrovsky from pbs thank you for your. time >> thank you for having. >> next, why is a fox news host -- for vladimir putin. how tucker carlson's pro russian rhetoric is finding all amongst republicans in congress. that's after this. after this. er, and wake up refreshed. the brand i trust is qunol. the biggest cheerleaders for russia as a threatens to be made a peaceful unsettling country is the host of the number one show on fox news. >> why do i care what's going on between ukraine and russia? why shouldn't i root for russia, because i am. at this point they want to torment vladimir putin, whatever his many faults, has no intention of invading western europe. vladimir putin does not want belgium. he just wants to keep his western border secure. wait a second, why is it disloyal to side with russia but loyal to side with ukraine? >> that kind of perspective has created tension on parts of the republican establishment, with certain republican senators pushing back against carlson support for russia, but axis report says carlson's pro russia message has

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that has been stated demand at the negotiating table by lavrov and other -- julia ioffe and simon ostrovsky, thank you both. >> and this week alone, donald trump was to sit for a deposition. tonight, he lost his bid to block three january six related lawsuits. plus, the latest on those classified documents snatched at trump's palm beach result. just ahead. snatche snatche at excuse me? do the research, todd. listen to me, kayak searches hundreds of travel sites to find you great deals on flights, cars and hotels. just ahead they're lying to you! who's they? kayak? arr! open your eyes! compare hundreds of travel sites at once. kayak. search one and done. compare hundreds of travel sites at once. ♪ ♪ ♪ hey google. ♪ ♪ ♪ ♪ ♪ ♪ ♪ (jazz music) ♪ (thank you, have a nice day.) ♪ (trumpet solo) ♪ (bell dings) (pages slipping) ♪ ♪ ♪ (trumpet solo) ♪ ♪ ♪ (typing) (bell dings) ♪ ♪ (cheering ♪ ♪ (typing) ♪ ♪ ♪(trumpet solo) ♪ i'm mark and i live in vero beach, florida. ♪ ♪ my wife and i have three children. ruthann and i like to hike. we eat healthy. we exercise. i noticed i wasn't as sharp as i used t