prepandemic levels. new york and other states aailr voting. results could be . moterill nee be patient. >> absentee or mail in ballots tend to be more labor intensive. you need to open the envelope, separate out the envelope and remove the ballot. hi we want it's going to take.tiedgeme fiv states that vote exclusively by nail. this fall in an effort to keep voters safe five states will accepted mail-in ballots to all registered voters. >> you never know until the election's over. >> waiting may be the hardest part. this year it won't necessarily

mean something's gone wrong. >> we may not have official resultsor quite some time. >> he oversees security. >> i might not get called for some time. be prepared, be patient and participate in the process. >> colorado is an all vote by mail state when democrat janet griswold is the secretary oakf to work with them. >> one thing colorado does, it processes mail in ballots until the election day. there are other advantages, he says. >> increases security. russia cannot hack a mail ballot and it's the best way to vote and social distance. >> wisconsin, michigan, and pennsylvania are expecting big increases in mail in voting this year. all three were pivotal to deciding the outcome in 2016 but none allows for early processing

of mail in ballots. >> the other states have figured this out. i'm hopeful we'll be able to do so come november. >> the secretary of state has sparred with the gop-controlled legislate you're on this issue. >> citizens not just in michigan but around the country need to know exactly why it will take longer, perhaps even a few days longer. >> again washington secretary of state. >> half of the country believe joe biden's going to win. half the country believe president trump is going to win. our job is to inspire confidence in the losers. >> majorarrett reporting. the challengesfeemot r are tryi so-called learning pods where they hire a teacher or aides to help children in all sma

at school like you've never seen it. walker al wil learning pod. when she was looking for families to partner with, the response was overwhelming. >> people left and right can you include me, can you e-mail me, can i be a part of the conversation. >> that would be positive. >> four familiar police from nearby recently met up for the first time to figure out how the bod will work. >> social distance and -- >> she says students will follow the curriculum on line. a hired teacher assistant will work with the kids in person five days a week. the learning will take place outside. when it's raining they'll rotate students' homes.

the cost $700 to $1,000 a month per family. >> i find myself wondering do some parents not know what they're getting themselves into? >> i saw a great memeha tto ai he class. t >> he runs a national program for principals. >> i see it as a really strong opportunity, but i also have some reservations about it. those reservations really have to do with equity, what happens to our homeless. what habit to students with liha to english language learners? >> many captain afford the high price of a pod not only for the 16.2 million people who live below the poverty line but also families without deep pockets. noah, a special needs student is about to startther could

aboard pods. >> i think as a country we should try to put something in place so that all students had acssoheamethg. whether they're public school students, charter school students. >> they get together and create pods so that everyone hassescc l looking at as many models as possible. >> pods are not the tibuhe ber t have. >> we're trying to figure out what's best for our family. i feel lucky and blessed that we're in a position to be able to look at doing this. i have multiple times said i just can't imagine what people are going through that aren't in that position, so i'm conscious of that. >> there really is no standard for how pods will run. some people hiring certified teachers, others are hiring tutors. i think they're too worried that

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jeff glor got a lesson from the best. >> imagine in this time of chaos and uncertainty finding something that takes you away, that puts you back in touch with the timeless. it's why so many lately have discovered fly fishing. >> oh, strike. nice. >> when you find yourself doing something and you don't notice the passage of time, that's what fly fishing does. puts me in another state. >> peter kaminsky has devoted half a century to this sport, both casting and writing about it. >> where there's carnirousfi, s fly. >> the fly sits on the water. it can be far more challenging and rewarding. the origins trace back to the roman empire but it was the english with all bamboo rods who put it on the map in the 1600s.

it staedrtn norew ykhiurcey.nt was lee wolf who brought it into our living rooms on shows like abc's "american sportsman." he died in a plane crash in 1991 but his wife, a master herself, is still going strong at age 94. >> for me, it was being in the out of doors, the natural world is kind of my church, my religion. >> joan wolf was first introduced to fishing in the 1930s. >> that was almost 90 years ago and you remember that like -- like it was yesterday? >> it's determined my life basically. >> joan went on to win her first professional competition at the age of 12 and set many milestones for female fishers after that. for the past 30 years she's been running the fnd her husband foud in the catskills.

>> it's your passport to being a good fisherman. you've got to be able to cast well and put the fly where it should go. >> what do you think you've come to appreciate or learn given these extraordinary times? >> for one thing, there were very few women who fish, so that's been the story of my life is trying to get women into the sport and finally i've had to wait this long. they are now in. >> joan was gracious enough to give us a lesson. >> we have a backcast and we have a forward cast. >> yep. >> so it is just the forward cast. >> ok. >> now with this. do you see that the rod is away from my wrist and i've got a 90-degree angle basically. >> yeah. >> i'm going to pull it down in one piece from the shoulder just like that, do that.

pamd feel the shoulder. yes. we're not doing back -- >> we're not doing backcasting. >> it's hard. >> thank you for your patience. >> all right. >> it usually takes a couple of days to get the hang of it. >> try it again. >> but when done right, there is not much better. there is a seduction to it. very much so. you watch the trout feeding and you approach it and don scare it and you work on it for a while and get it to take your fly, it's a dance. >> yeah, yeah. >> the fish puts on sudden bursts of speed, then stops and comes in like a log. >> it's been cat and release, eating what you catch tastes great, but done over and over, it's not sustainable for fieries. for many who spend time in these waters, just being here, danci and chasing is enough. right now more people have a craving to be outdoors.

but it's something that people can always return to, right? >> (upbeat music)

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jierk a comet has been putting onw mor sni skyho and now just after sunset.one astronomen of possible danger in the heavens. ian lee reports. >> at three miles wide, the comet sails armed our sun but happen if this t bloudustld, ice and rock changed course? >> withhing like this, take out a large country, maybe a continent. >> this is the director o the a tore on a wind swept in wales. it's shown on screen as moving white dots.

>> and then you can find out whether it's going to come uncomfortably close to the earth or any of the other planets. >> the observe story is home to several telescopes. his latest will take him from watching the sles tal neighborhood to exploring it. >> this is the big one. the crown jewel. what does this give you? >> this allows us to be the detectives stopping the crime before it starts. and we'll be specifically looking at bits of sky that the major searchtgr proams the moment aren't. >> reporter: nasa says it takes the threat seriously and currently monitors nearly half the sky. it's not the big as stroids seen in hollywood armageddon. >> what scares you about what yooiu'?it d >>ha wsct es thear ground. >> little ones that the meteor

in 2013. >> that one was less than 20 meters across andad the ability to take out a rsonable size city. but little ones are much harder to see and much, much frequent. >>ut o oh, yeah. the ones that yeah. >> he says there are ways to deal with the threats. with so much on the line it may surprise you thatis rkerton oe nfundfed. space guard runs on donations and help from volunteers. for him,hat's alobal proble mthhink s take is >> when it comes to the survival of the species, it nine quite a good idea, yeah >> unless the rest of the world takes the situation seriously, we're leaving our fate to t cosmos. ian lee, cbs les. if you miss it, the comet won't be back for some 7,000 years. that's the "cbs overnight news"

for ♪ ♪ captioning sponsored by cbs >> o'donnell: tonight a major headline as we come on the air. the head of the u.s. postal service reverses course, now vowing to stop all changes until after the election, over concerns his moves would sabotage the mail-in vote. but congress still wants answers as at least 20 states threaten to sue, and why the president falsely questions the integrity of our election systems. >> it will end up being a rigged >>ection. o'don: democratic national convention without the crowds. tonight, bill clinton slams president trump's leadership. plus, the surprise message tonight from the widow of john mccain as dr. jill biden prepares to take center stage.