disinfecting the streets. in three days health workers tested nearly the entire population of about 19 million. the epidemic in guangzhou is an unprecedented opponent and requires our resolve, said the deputy director of guangdong center for disease control. the delta variant of covid first emerged in india this spring. 3,500 people are still dying on average each day. the most of any country in the world. according to the "new york times." and the strain is now the most common in the united kingdom. but there is some good news today. chinese health officials are now saying that the surge is easing but they're warning that future flare-ups could follow. as for here in hong kong, no reports of the delta variant just yet, but that's because no tourists are allowed, only residents. case in point, myself. last month i had to do a three-week mandatory hotel quarantine. at the time it was the longest

in the world, and some still say it was the most brutal. >> rami i no. cencio in hong kong. those strict travel restrictions he just detailed could remain in place until next february. that's when beijing is scheduld to host the winter olympics. meanwhile, there are renewed calls to cancel this summer's olympics in tokyo as japan suffers through a huge spike in covid cases. lucy craft has the story. >> reporter: with anti-olympics protesters on the street, a japanese olympic board member slamming the international olympic committee for cornering japan into holding the games, and a top virus expert warning that guaranteeing a safe olympics was impossible, japanese officials are trying to give assurances they won't compromise public health to stage the games. despite all the warnings, athletes already arriving in japan. but even if japan wanted to cancel the games, legally they

couldn't. >> tokyo. [ cheers and applause ] >> reporter: the olympic host city contract signed between tokyo and the ioc in 2013 doesn't give tokyo the power to scrap the games. only the ioc holds that right. but if a covid surge forced japan to pull the plug, smith college economist andrew zimbalist said the ioc was unlikely to sue for what he estimates would be a loss. >> they went 30, pa-5 billion dollars. he they went ahead with the postponement even though that cost them another $3 billion. and now you're going to sue them? certainly the ioc would have the legal right to do that but whether they would do it or not is another question. >> reporter: but if organizers don't cancel the games there is a chance of it becoming a superspreader event, said jack anderson, a sports law professor at the university of melbourne. >> what's your biggest worry? what's the worst case scenario? >> the worst case scenario is that the games begin, there is a

severe outbreak and therefore you have thousands of athletes from all over the world and officials. what do we do logistically then? >> reporter: with even critics saying it's already too late to halt the event, japan is hoping for the best and bracing for the worst. lucy craft, cbs news, tokyo. closer to home, millions of americans will soon be pulling suitcases out of the attic as the summer travel season picks up. but there is trouble in the skies. armz repairlines report a growi number of violent in flight disturbances. errol barnett has the latest from youlths washington. >> reporter: the faa says there have been more than 3,000 complaints of unruly passengers just since january 1. compare that with the past decade where the agency says it investigated 1500 incidents total. and you're right, for the first time in recent memory we're now

seeing an off-duty flight attendant as the one allegedly causing the disruption, and it was all caught on video. >> stay down! >> reporter: this was the chaotic scene aboard delta flight 1730 friday night as travelers were called into action to assist a flight crew in subduing a disruptive man. >> i heard the pilot from the cockpit going if there's any large men on board please come to the front of the plane immediately we have a crazy passenger. >> reporter: brandon nazrian says he was seated near the off-duty delta flight attendant who caused the scene and watched the struggle up close. >> it's a huge fight. they get him down on the floor and he's flailing everywhere. his legs are flying in the air, his arms. he's screaming. there's passengers screaming. especially after a year of being locked up we were all finally vaccinated, trying to fly, trying to travel, and just everyone is acting crazy on planes now and it's making people not want to fly. another man was restrained after trying to breach the cockpit on a flight from l.a.x. to nashville. while in may this woman was charged with felony battery

after video showed her punching a southwest flight attendant. while air rage has been an issue for decades, this surge in conflict has some flight attendants scared to work. that's according to sarah nelson, the president of the flight attendants association. >> we are on track to have 60 times the number of unruly passengers as we might have had in a typical year. >> reporter: over just the last six months the faa says it received almost 3,000 reports of unruly passengers, mostly related to refusing to comply with mask mandates. >> people have an idea that on the plane it's a different set of rules. not to mention all the stresses that people experienced over the last year. all the uncertainties that they went through. people are feeling like enough is enough. and they're really acting out. and now they're getting out and wanting to be free. and the first thing that they have in front of them is a combat over a mask. >> reporter: now in an effort to

curb some of these incidents several airlines have gone as far as to suspend alcohol service. but with longer security lines like here at dca this morning and more crowded aircraft the fear is that this may just be the beginning of a difficult summer of travel. >> errol barnett reporting. the federal mask mandate for air travel remains in effect until september 13th. you're watching the "cbs overnight news." start t your day w with cresd whwhite anand from mocochaccinos t to m your s smile will l always e brililliant. crcrest 3d whihite brilliaia 10100% stain r removal, 24 hour r stain resisistance tok in y your whitesest smile. cresest. the #1 toooothpaste brbrandn america.a.

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made f from 100% n natural gir and pepperermint. since the pandemic began last year, millions of americans have spent countless hours in zoom meetings. most of them can be pretty mundane. but for a small fee thousands have added a little barn-yard fun to their online chats. emtiaz tayeb has the story. >> reporter: nestled among the rolling hills in england's northwest is a farm like no other with a flock like no other. all led by farmer dot mccarthy along with her herd of what might best be called zoom call goat crashers. >> this is -- my name's dot, and we have started putting our goats on the internet. >> why? >> it started as a joke during

the first lockdown in the uk. we just put it on the website as a joke. but turns out there's a lot of people who are very bored. >> reporter: how many of these calls have you done now? >> we've done over 10,000 now. >> reporter: 10 now. >> which is -- i can't even believe i'm saying it. >> what's the goat's name? >> the goat's name is mumu. >> that's so cute. >> reporter: the goats have been called on to crash all kinds of calls. booking them is easy. just log on to the farm's website, pick a goat, put in your details, and for the low price of $7. >> i'm sorry. is that footage live? >> reporter: your next video conference will have a vocal new participant. bringing with them a welcome bit of levity. >> everyone, please meet lola. >> reporter: charles weiler ulid, an american who runs a media company in the netherlands, and now goat crashing enthusiast.

>> it's so ridiculous but also so much fun, isn't it? >> you know, no one wants to wake up early in the morning and jump on a zoom call with everyone. it's always the same. you need something to spice it up. and the goats seem to have worked really well. >> reporter: the unbelievable success of mccarthy's goat crashers has seen her rake in more than $75,000 over the past year. >> brilliant. >> reporter: which has meant she hasn't had to lay off any of her staff during the pandemic. although their jobs have changed a little. >> this is the goat farmer. archie. he's my apprentice. >> reporter: for 12 hours a day the staff take booking after booking from all over the world, making mini celebrities of their caprine charges. >> this is lola. >> reporter: and what's lola like? >> she is a show goat. yellow ardine in her hair.

butting goats without a care. this is daisy in here. this is daisy. she's very greedy. >> there you go. >> reporter: a perfectly charming trait for a goat, judging from the digital howls of laughter. >> well, that was a nice little break in the day, wasn't it? >> reporter: coming from across the globe. >> say good-bye to the little goat. >> bye-bye. >> it's just making people smile, which is really nice. i can't -- i'm not a medical professional. i can't help in any other way. >> reporter: there are some hazards to hosting goat zoom calls. with most of the staff losing bits of their clothing and even a few inches of hair. do you think it's going to last? >> no. >> no? >> i think it's just a phase. everyone is a bit crackers at the moment, aren't they? so i think once we're all allowed out again and we can all play out then i think it will go back to normal. >> it's the best thing ever.

>> reporter: a new normal that comes with a new outlook on life. all thanks to her superstar goats. >> mtias

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graduations are always a reason to celebrate, especially when you've waited decades for your diploma. here's cbs's omar villafranca. >> reporter: 697 students are graduating from alvin high school. pat moore is there to see his great granddaughter brissa. >> are you excited? >> heck, yeah. >> reporter: but she isn't the only member of the moore family to graduate this year. moore almost graduated 76 years ago from alvin high school. what happened? >> failed me. >> in what subject? >> english literature, and i hate to read. >> reporter: so he came back the following year. but this time? >> i had to go.

>> reporter: a few months before graduation moore was drafted into the army air corps. after nearly four years of service he came home to fly crop duster planes and start a family. being a dad and a pilot left little time for school. but earlier this year in a small ceremony moore finally received his diploma. the class of 1946. what made you want to come back and get your diploma and graduate? >> that little girl right there. >> reporter: and he probably passed the porch. >> i love you. >> i love you. >> reporter: you've probably accomplished a lot in your life. where does this rank? >> way up there. >> reporter: at 93 pat moore proves that ag like the year on a diploma, is just a number. omar villafranca, cbs news, alvin, texas. >> and that is the "overnight news" for this tuesday. for some of you the news continues. for others check back later for "cbs this morning" and follow us online a time at cbsnews.com.

reporting from the nation's capital, i'm chip reid. ♪ ♪ it's tuesday, june 15th, 2021. this is the "cbs morning news." high stakes summit. president biden meets tomorrow with russian president vladimir putin. the biggest topics expected to be addressed. massive explosion. a chemical plant goes up in flames, visible from 100 miles away. what's inside the facility and how long the smoke could linger. [ cheers and applause ] >> how are you? live audience, after 15 months, fans finally return to "the late show with stephen colbert."