saying uaps quote could potentially be a parent craft that releases many small probes passage to earthof. >> we don't have any evidence for that. have no evidence for that. >> and fox news reached out to the pentagon for comment on today's hearing and dr. kirkpatrick's recent academic paper but have not heard back. bret? >> bret: griff, thanks. more on that in a bit. up next our "common ground" segment. a bipartisan effort to help people with life-threatening medical conditions. as we go to break it was 28 years ago today, 168 people died in the a.o.c. city bombing. a memorial ceremony was held today. the truck bombing of the government building was the deadliest terror attack in the u.s. prior to 9/11. bomber timothy mcveigh was executed. co-conspiratorrer terry nichols is serving 161 consecutive life terms. two years earlier in 1993, the disastrous end to 51 day standoff at religious compound in waco, texas. four federal agents were killed. almost 80 members of a cult, including a leader david karesh self-proclaimed prophet perished in the fire or from the shootings. ♪ so you only pa

. >> easy for you to say. >> uap.ld assignment today. julie, we got a lot of new numbers, i understand, about an increase in reporting. can they explain them or not explain? >> reporter: well, look, there's a lot they still can't explain. this is only the second hearing in 50 years, the first one being last may on these ufos, whatever you want to call them, uaps but what shawn kirkpatrick said is that they're likely not aliens or not a result of extraterrestrial activity. take a listen to what he told lawmakers and a little of what they're working on in terms of beefing up their reporting capabilities and identifying capabilities of these objects. watch. >> only a very small percentage of uap reports display signatures that could reasonably be described as anomalous. in our research arrow has found no credible evidence thus far of extraterrestrial activity, off world technology, or objects that defy the known laws of physics. >> reporter: kirkpatrick who heads up the office beefed up its presence sometime around the s

but now they are called uap, today's lone witness heads the pentagon's uap office, known as the all domainfficer, and raising abrows after a bizarre paper last month talking about extraterrestrials saying they could be a parent craft that releases many small probes during its close passage to earth. well, we caught up with dr. kirkpatrick after the hearing, had this to say. >> we don't have any evidence for that. have no evidence for that. all we have is the data you saw, that kind of evidence, and we are laying out all the signatures associated with that across all of those hypothesis. match data to hypothesis as we get more data. >> much like how many uaps are weather balloons and how advanced actually is our adversary's technology, in the wake of the chinese balloons. >> the recent downing of the chinese surveillance balloon and three other objects underscores the need for domain awareness. adversaries like china and russia are working to hold u.s. interests, including our homeland at risk. >> senator gillibrand chaired the hearing said the past two years, over 300 incidences were deeme

today the man in charge of investigating uaps said his office now has 650 reports. more than half have a round or sphere shape possibly balloons typically white translucent or metallic, observed at 10,000 to 30,000 feet and so far, no sign of alien involvement. >> no credit evidence thus far of extraterrestrial activity. >> reporter: sean kirk patrick says this remains unsolved, a cylinder. it turns out to be a plane. >> this is the heat signature off the engines of a commuter aircraft that happened to be flying in the vicinity. >> reporter: more concerning, russia or china could have advanced capabilities the u.s. doesn't have. >> could you describe a potential threat that might exist out there if they are foreign? >> are there capabilities that could be employed against us, absolutely. >> reporter: two months after u.s. fighters shot a chinese spy balloon out of the sky, "the washington post" reports leaked intelligence documents not verified by nbc news suggest china could soon deploy a high altitude spy drone able to travel at three times the speed of sound and

. >> we cannot keep turning a blind eye to data critical to attracting uap. >> reporter: this week onthe top pentagon official reviewing unidentified aerial phenomena or uap says they're investigating roughly 650 cases. that's up for more than 500 reported at the beginning of the year. >> the majority of unidentified objects reported demonstrate mundane characteristics of balloons, unmanned aerial systems, clutter, natural phenomena or other readily available sources. >> splash -- >> reporter: and so far no proof any of them are aliens. but with the team of researchers, harvard astro physicist loeb is leaning on science to dig deeper. >> even if we have a million fuzzy images from cell phone cameras, not equivalent to one crisp image with high resolution from a well calibrated scientific instrument. >> reporter: he thinks what may be an interstellar object that crashed down in 2014. >> finding evidence for extraterrestrial technologies could provide with us a glimpse at our technical future because that would be the biggest discovery that humanity ever made if we happen not to be alon

norad has adjusted its radars to be more sensitive to detecting potential uap's leading to an uptick in picking up potential incursions. his the faa adjusting the status of airspace quickly as regularly as norad may need to respond to incidents? and i guess more generally, can you tell us how you're transforming your systems to be integrated into what we know from our national security folks and the department of defense, a lot of this has the faa implications. i think increasing the sensitivity of the radar makes perfect sense. i also think that there may be instances now where we're gonna get a ping on the radar that is a flock of birds or some other not particularly dangerous i shouldn't say birds are not dangerous, i am aware of bird strikes, but the point is it doesn't rise to the national security level. how are you sorting this, and what changes are you currently in the middle of? i don't expect you to have a fully formed answer, but i would like to be reassured that you are working with our partners in dod to get this right. acting admstor nolen: thank you. we are collaborati

do a better job of protecting these uaps. recordings of these objects are limited right now.y what they are. >> thanks, joe thank you. >> now to a major announcement from netflix we told you about the streaming giant's plan to crackdown on password sharing now we know a bit more about the timeline the company had an earnings call yesterday and revealed some of that jacob, good morning. >> good morning to you netflix has been the go to streamer for hundreds of millions of americans for a decade now the company is looking for new ways to boost revenue and stay competitive, and that means big changes are ahead. whether you are bringing a previous show, or whether you are re-watching an old favorite. >> and the eye of the tiger, man. the itch and now you got to get it back. >> sharing pass words is a block bluster problem for netflix. months after warning password sharing was officially on borrowed time, announcing the crackdown will happen in the second quarter which ends in june. >> we are looking to re-accelerate our revenue growth >> while reaction on social media was swift.