captioning funded by cbs and ford. we go further, so you can. >> it's the first time ever in >> it's the first time ever in europe that we had terrorists rampaging through our streets, >> leslie stahl: he is the head of europol and talking about how the paris attack represented a new kind of terrorism and how investigating authorities are facing a new kind of challenge. how much is encryption a problem in these investigations? >> in most of them. i mean, across the tens of thousands of investigations that europol is supporting every year on terrorism and serious crime, at least three quarters of them have encryption at the heart of the challenge that law

>> our evidence points to the fact this cancer will kill me. >> dr. john lapook: brittany maynard ended her life with a lethal prescription three weeks after that interview. to oregon where aid in dying is legal. >> within five minutes, britney fell asleep, just like i have seen her do 1,000 times before. within with 30 minutes, her breathing slowed to the point where she passed away. >> lapook: she has become a symbol of aid in dying and her husband is carrying out a promise he made to her before she died. >> morely safer: bjarke ingels is the architect of the moment. a starchitect, designing everything from skyscrapers to an n.f.l. stadium. >> so you are getting what is literally a picnic in a park. >> safer: as we will see tonight, young mr. ingels

provocative and are anything but boring. >> the roof itself is something you call a saddle shape. or in geometric terms, you call it a hyperbolic paraboloid. >> safer: say that three times quickly. >> i am steve kroft. >> i am lesley stahl. >> i am morley safer. >> i am bill whitaker. >> i am scott pelley. those stories tonight on "60 minutes." r seen it. covered it. we know a thing or two because we've seen a thing or two. we are farmers. bum-pa-dum, bum-bum-bum-bum seresto makes it easy to help protect your dog or cat from fleas and ticks. with the performance you expect from a monthly topical in a non-greasy collar... seresto kills and repels fleas and ticks for 8 continuous months. seresto . from bayer. the microsoft cloud allows us to access information

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>> leslie stahl: the argument over encryption between apple us that the world is facing a far more tech savvy terror threat. while not that long ago, al- qaeda often handled itsing back to the stone age, relying on mules and couriers. the islamic state, or isis, just a push of a button using everyday tools of 21st century teenagers: the latest ps.

around an iphone found in sannd women were killed in a terror attack last december. but before that, there was the massacre in paris.t the city's chief prosecutor who is confronting some of the same issues. >> francois molinshe terrorists are able to communicate with total impunity. >> stahl: francois molins is the head prosecutor of paris. he's investigated all the bigre, including charlie hebdo, the kosher supermarket, and now thewhere 130 people were killed, more than 350 wounded.orist attacks that you have not been able to get into because of encryption? >> molins: oui, oui.ption software programs, we can't penetrate into certain conversations and we're dealing with this gigantic black hole, aare just

on. >> stahl: it's not just phones. one of the things he's lookingp favored by isis called telegram which, like the new apple iphone, offers advanced encryption.un in, in all your investigations, into telegram? >> molins: yes, very often.enetrate, we can't get into it. >> stahl: pavel durov is the inventor of telegram.an without a country. he's russian born but wanders the world now, in exile. he created telegram so he couldete secrecy. it has taken off, used by over 100 million people.orists now. is this a concern for you? >> pavel: oh definitely.

we're discussing are only a fraction of a fraction of a fraction of the potential usage. to, you know, prevent it. >> stahl: telegram has become a go-to site for isis. they use it to widelyda like this video of the paris attackers training in syria.also use telegram to send private messages to each other to covertly plan and coordinate attacks.n your site on telegram that allows any messages, emails, to just disappear, vanish? >> pavel: yes.ges we have this secret chat feature which provides you with a self- destruct timer. >> stahl: self-destruct timer.set a specific amount of time, like a few seconds, or a minute or a

would disappear.v's obsession with secrecy and security stems from his own personal history. long before telegram, he wasrk zuckerberg of russia" because he built a popular equivalent of facebook.in marchers filled moscow's streets, the kremlin demanded he take down the organizers' sites.d to do that publicly. and the next day, i had armed policemen at my doorstep. >> stahl: wonder why.to break into my apartment. >> stahl: there was continual pressure on him to hand over users' personal data, 2014 when, under kremlin duress, durov was ousted from his own company. >> stahl: how long did you stay in russia after that?le day. >> stahl: oh, then you fled. >> pavel: i certainly feel that

anymore.n he created telegram and encrypted it, he says, so activists could be assured that no government could data. he managed to leave russia with a reported $300 million, whichy fund telegram, costing him, he says, over $1 million a month.u created to allow democracy to flourish, to allow dissidents in russia and in other countries tor. and then all of a sudden you find out that-- this terrorist group uses your site for reasons. >> pavel: yeah, we were horrified. >> stahl: there's an irony there. >> pavel: there is. but you know there's little youu allow this tool to be used for good, there will always be some people who

terrorists hit paris on the night of november 13, isis used telegram to take credit for the attacks.l for european authorities. >> rob wainwright: it's the first time ever in europe thatg through our streets, first time we had terrorists wearing suicide belts in heavily populated, public areas.ead of europol, rob wainwright gathers and analyzes information from over 600 law enforcement agencies.counter terrorism center to better coordinate all the intelligence. how much is encryption a problem generally in the >> wainright: in most of them. i mean, across the tens of thousands of investigations that europol is supporting every year crime, at least three quarters of them have encryption at the heart of the challenge that law enforcement face.

specifically? >> wainright: from what we see, encryption also played a role in that part- and that's something much deeper at the moment. >> stahl: why is it still a mystery? >> wainright: it's not-- not so much of a mystery.all the details about a very sensitive investigation in public. >> stahl: we know that the28- year-old abdelhamid abaaoud, was a wanted fugitive who goaded this online isis magazine how easily he eluded them shuttling between europe and syria.ies of his exploits, often posting them online. in this gruesome video, he ando the back of a truck, abaaoud in the driver's seat: >> abdelhamid abaaoud ( translated ): we used to tow the infidels fighting us. >> stahl: what is astonishing is that you knew who he was.

): you're right. abaaoud-- he has been one of the belgium counter-terrorism for many months.is, abaaoud was suspected of guiding european jihadis in attacks in france and belgium, but the in one of them, an iphone belonging to one of the jihadis was confiscated - but it was not because it was encrypted. we've been told, and i want to confirm it, that the encrypteded you from getting information about the paris attacks. >> molins: that's a theory thatinto. but to do so, we really need to be able to get into that phone. you know, i say, all these smart because they deprive us of a lot of information that could contribute to our

paris on the night of november 13, coordinating three different teams over his phone: one group,adium, exploded their suicide vests outside.t on a killing spree at bars and cafes, while a third team stormed aan theatre and started shooting. myself: "the thing that we'd been fearing was coming for months, was now happening." >> stahl: the prosecutor rushedto the cafes where abaaoud had already sprayed the sites with an assault rifle.hat he participated in the commando attacks at the cafes; afterwards we see him in a video in the

bataclan. >> stahl: the prosecutor also bataclan. what he didn't know was that abaaoud was outside the theatreongs of police, standing there in his orange sneakers, apparently talking on the phone to the shooters inside.lice didn't spot him there, he was tracked down to an apartment in a paris suburb five days later, and killed in a hail of gunfire and explosions. ( explosion ) a stroke of luck, police found a samsung phone one of the attackers had tossed into a garbage can in front of the encryption problems. >> molins ( translated ): : we were able to get information from phone communications thatthe terrorists movements: where they were, where they stayed, their itineraries. >> stahl: standard text messagese,

"here we go. we're starting!"ram. it had been downloaded the day of the attack. but you personally don't know if the attackers actuallyia telegram to plot these coordinated attacks, or even if they used it during the attacks? >> pavel: no, we have no that. >> stahl: is there anything in your mind that says, "gee, we have to have to allow lawause what's going on is just unacceptable." >> pavel: you know the interesting thing aboutot be secure just for some people. >> stahl: isis and other terrorist groups, they just pushcation like yours, specifically yours, an application and it's gone around the world, like that., this is the world of technology and it's

point. isis could come up with theiron within a month or so, if they wanted to because the- >> stahl: you mean create their own telegram? >> pavel: exactly.ov has been purging isis propaganda from telegram but says, if asked to unlock any private messages,thorities that the encryption code makes it mathematically impossible, using a similar argument as apple.saying that even if you wanted to, your hands are tied. >> pavel: yes. >> stahl: you can't do it. >> pavel: we cannot. >> stahl: so this is one of theime. which is more important? is it more important to shut down this kind of terrorism or preserve privacy?ally for the privacy side. but one thing that should be clear is that you cannot make just one exception for lawendangering private communications of

because encrnot. >> stahl: the founder of telegram has told us he thinks privacy is more important thannd he wouldn't open it up even if you did ask him. >> molins( translated ): fine, that's his personal choice.are limits in all societies. there are limits to freedom and privacy. freedom doesn't mean you canthing you want. and there's a duty of institutions, police and judicial, to ensure security.om without security. for my daughter. for the little things. and the big milestones. and just like i'm there for her, pacific life is there to help protect me and my family so i can enjoyts. pacific life. helping families for over 145 years achieve

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tt2watx#`i4 p bt`nq-8 tt2watx#`i4 p "a`na!\ tt2watx#`i4 p bm`nj*p b8h tt4watx#`i4 r enlq 2> leslie stahl: now, dr. john lapook of cbs news, on assignment for "60 minutes." >> dr. john lapook: brittany maynard was dying of brainded to drink a lethal prescription to end her life. she was just 29 years old. her decision made her a symbolw much we should be able to control the time and manner of our own death. this is not euthanasia, when ant a lethal injection. that's illegal in all 50 states.

supporters call "death with dignity," relies on people taking the medication themselves. e to legalize it 18 years ago, but because a nurse or doctor is rarely present, it's remained mostly a private affair, closed doors. we wanted to hear from patients and family members who've experienced it and are fighting to make it legal nationwide. been married less than a year when the headaches began. this m.r.i. revealed a deadly mass.brain cancer so aggressive, doctors gave her only six months to live. >> brittany maynard: all evidence points to the fact that >> lapook: three weeks before she died, brittany, bloated by medication used to control brain swelling, explained in an news why she was grateful to find a legal way to end her life.

slip into a sleep in five minutes and pass away mostr sounds a lot better to me justghter, as a wife. and i think it sounded better to my family than reading about the alternative.tive, husband dan diaz says, was for brittany to endure weeks of agonizing decline. >> dan diaz: brittany said, "i'm not afraid to die.point i am not afraid of death. but i am afraid of being tortured to death." >> lapook: what did she mean byly? what was she afraid of? >> diaz: so those symptoms that she knew was coming for her, the torture for her would've been knowing now who's in the room. i mean, the seizures were bad enough as it was. >> lapook: how about pain? >> diaz: pain was just constant.g medication wasn't legal in their

so in the spring of 2014,ime to pack up and head to oregon, the closest of four states where it was legal. resident, brittany had to make two verbal requests, 15 days apart, to a doctor, fill out have two physicians confirm she was mentally competent and expected to have less than six months to live. prescribed is secobarbital. a barbiturate that in small doses causes sleep, in large doses, death.comes in with a prescription and gets a bottle of 100 of these capsules. each one has to be opened up by one the powder poured into a glass and the contents dissolved in water. >> maynard: this is theh dignity. >> lapook: since 1997, more than 1,500 prescriptions have been written in oregon. it, never took the medication. >> diaz: i think people think,

medication. and then, you get that.d of done." no, no, no. you apply for that medication. you secure it. you put it the cupboard. and you keep fighting. and we sent her packet ofto duke and mayo clinic and u.c.l.a. and everywhere that we possibly could to see what's out there. so you have cancer, you fight.s tumor kept growing. invading her brain, and causing seizures so violent they left her unable to speak for hours.ght soon leave her paralyzed and unable to take the lethal medication. so on november 1, 2014, she facebook, said goodbye, and drank the five ounces that would end her life. do you mind sharing the last few? >> diaz: um, we were um, in the and i was right next to her. there's no, like, dark cloud

it-- it-- the feeling is simply within five minutes, brittany fell asleep just like i've seen her very peacefully. within 30 minutes, her breathing slowed to the point where she passed away.z has kept in touch with dr. eric walsh, the oregon physician who prescribed the medication.out the specifics of brittany's case due to patient privacy, but for the first time has agreed tothe medication to her, as well as to 19 others. >> dr. eric walsh: when somebody's facing the end of their life, shouldn't they be in control?to help them when they're suffering, and the burden of living becomes intolerable to them? >> lapook: we hear a lot aboutn experience. but it's a lot of sort of statistical detail, and not a lot of emotion. >> walsh: you're right, the

human stories with the tears washed off. >> lapook: tell me about your tears, perhaps once you're involved in this.we categorize tears into a single adjective. tears of joy, tears of sorrow, tears of regret.ally in the physician aid-in-dying, these are tears that contain all-- all of those adjectives. >> lapook: elizabeth wallneras advanced colon cancer that multiple surgeries, radiation and months of chemotherapy are barely keeping at bay.f california for the right to end her life with medication. why do you feel so strongly about legislation?ly, for my son. i remember-- you know, he was 15 when i was diagnosed.ember this one time i was in the bathroom and he was taking care of me while i

over at him and his face wasstated. and i just realized in thatly take so much and my family can only take so much. this child is my knight in shining armor. wallner, now 20, says he savors the time he has left with his mom, but is realistic about what lies ahead.: four-and- a-half years of fighting cancer, you've gone through enough pain and suffering. >> elizabeth wallner: yeah. >> lapook: i guess there's feeling it for sure. and i can see it in your eyes. and then there's when the moment comes. is there a little bit of a about how you'll feel then? >> nathaniel wallner: i don't think so. >> lapook: you've thought about this a lot. >> nathaniel wallner: yeah.day where i won't wish that there would be more

but there will very easily be a less suffering. >> lapook: elizabeth, who was raised catholic, disagrees with those who say aid-in-dying goes >> elizabeth wallner: i don't believe in a god that would want me to suffer and struggle to death. i don't believe in an in- compassionate god.e heard that actually makes any sense is that there is some beauty in struggle. and i agree with that, there is beauty in struggle.alf years, end of a struggle, i'm good, you know? >> lapook: oregon physician dr. william toffler, who's taken care of terminally ill patientss doctors prescribing medication may not know people well enough and might miss signs of depression.on oregon's legislation is flawed is that the state isn't required to track what happens to people after they fill their prescription.er: 90% of the time here in oregon, there's no doctor present. so there's really a shroud of secrecy under this whole thing.

reassuring. >> lapook: dr. toffler is referring to the fact that out of the nearly 1,000 people who've taken the medication,mplications have been reported to the oregon health authority. mostly vomiting, and sixsness at least once before dying. >> toffler: it's basically corrupting the practice of medicine where we are no longer and well-being of patients until they, they die naturally. but we're now actually hastening death by giving people massive overdoses.conflict of interest for doctors. >> lapook: dr. toffler says he faced these issues with his own wife, marlene, when she wasago. >> toffler: even with breathing difficulties, like my wife had with her terminal illness. and she had that fear.stand, "marlene, we can get through this together. we've got medicines to help relieve the air hunger. it's not gonna be that bad." and it wasn't.iams: hi dr.

>> lapook: we joined dr. walsh as he visited one of his hospice at home. dr. walsh says the majority of his patients who are terminally ill receive hospice care. >> nurse: big breath.sionate , professional end-of-life treatment that can include anti- anxiety drugs and powerful narcotics like morphine.mely effective at keeping people comfortable, in rare instances, standard hospice care doesn't work well enough.walsh says, one option is something called palliative sedation. >> walsh: when the physician decides that suffering issician prescribes a medication which puts the patient in a coma. >> lapook: which is what?'s a barbiturate. the nurse administers it. it's given until the person is asleep.r three days, five days.

still excreting, stillmily at the bedside wondering, "when is this going to end?" >> lapook: that was the kind of death californian jennifer glassnt. last year, battling lung cancer, she shared her fears in online videos.a that it will end by me drowning in my own lung fluid while my family terrifying. >> lapook: but last august, when standard hospice care was noass was put in palliative sedation, which lasted five-and-a-half days. th to a peaceful death, jennifer's husband, harlan seymour, says it did not work for her. >> harlan seymour: there were times when she was gurgling,g through the mo-- the mouth and nose. and i feel that she was suffering on the inside. that it was really a terror on the inside.was it like

>> seymour: to be there and see my beautiful wife suffer and-- and wither away and have difficulty breathing.eaking. >> lapook: dan diaz says he's grateful his last memories of, are of walking these woods in oregon. >> diaz: the last time i was here, brittany was at my side. the last time i did anything me and with >> lapook: before brittany died, dan promised her he'd work to their home state of california. so he quit his job and teamed up with the organization compassion & choices.ll was passed permitting aid-in-dying. it will go into effect this june. elizabeth wallner says she willol not only her suffering -- but where, with whom and when she dies. something she's grateful foraz and harlan seymour about their wives' final days. >> elizabeth wallner: those

different. pain, and in fear, and panicking, and thinking she was drowning. >> lapook: whereas brittany? >> elizabeth wallner: brittany husband. he had her arms around her, and she was asleep in five minutes. and both women are gone. what they left behind is so profound. >> lapook: and it sounds like from what you're saying yourtake the >> elizabeth wallner: absolutely. >> lapook: --of protecting your son. >> elizabeth wallner: absolutely. i just want him to remember me laughing and, you know, giving telling him to brush his teeth, and knowing that i would-- i would, youfor him. dr. john lapook examines the fine line between practicing medicine and

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as the pioneer of modern architecture le corbusier, who said houses were machines for living in.e of 41, bjarke ingels is turning out a lot of unusual machines. he is the architect of thet, designing everything from skyscrapers to an n.f.l. stadium. but, as morley safer discovered,ns, can be inventive, can be provocative and are anything but boring.rke ingels is having his moment. >> bjarke ingels: when you see it from the memorial... >> safer: he's not only designing the final tower at the

it continues all the way down to there. >> safer: he is trotting the globe, with some 60 projects in the works. much a work in progress. >> safer: there's the googleplex, google's futuristic complex of domes planned for its >> ingels: we were quite worried about that distance. >> safer: and the new lego headquarters in his native denmark., he has five major projects underway, including a $3 billion highrise that is a great view of new york so we decided to take to the hudson river to have a look.ssive, almost finished apartment complex for all those young and restless new yorkers striving to tell me why you call it "the court scraper?" >> ingels: it is the unlikely child of a new york skyscraper,nhagen courtyard building. >> safer: but it's also a pyramid, it also could be a

>> ingels: exactly.ed we had to make it much more extreme. so it became a single tower-- toowards the water. the roof itself is something you call a saddle shape, or in geometric terms you call it a hyperbolic paraboloid. ( laughs )ke-- >> safer: say that three times quickly. >> ingels: yeah, exactly. >> safer: are you surprised how good it is, or how bad it is or how unique it is?doxical for an architect. the only thing you can see is all the battles you lost, all the compromises that had to beeep )-ups that couldn't be fixed. ( laughs ) you're going to have to bleep that out. >> danish guard: attention. >> safer: the rise and rise ofere in copenhagen, where he grew up. his father an engineer, his mother a dentist.a cartoonist, but there was no cartoon academy. so i enrolled in the royal danish art academy school of architecture. but then i really got smitten by architecture.s.

ingels says he set out to disrupt modern architecture'she formulaic, boring box." >> ingels: when i started studying architecture, people would say, you know, "can you tell me why are all modern buildings so boring?"e had this idea that in the good old days-- architecture had, like, ornament and little towers and spires and gargoyles.ecomes very practical. >> safer: after graduation, ingels lasted just two yearst rem koolhaas before setting out on his own. in 2005, he formed big --for the- from his tiny apartment in copenhagen. >> ingels: denmark is one of the smallest countries on the planet. and there was something funnyig." i think if i would have started "big" in america, i wouldd it "big." there was nothing but, a little bit of local small country humor

some plaza. immediately, he began to win design competitions, making a name for himself with inventive, whimsical designs for what canng: suburban apartment buildings. >> ingels: five years ago, we had built a few projects in in a way ordinary. projects, like, housing and parking and shops and offices, n a way that created the-- maybe remarkable results. and suddenly, we got an invitation to come to new york on 57th street. and-- and in a way, i had nothing better to do, so i thought, "why don't i move to new york and see how it goes?"ty well. he now oversees 300 employees between offices in new york and copenhagen.it looks like a megalomaniacal. >> safer: ingels believes his success comes from his ability to combine the practical with the fantastical.h in

swim in the city's harbor. or how about this? the design for the just unveiled, complete with a moat for all those kayaking tailgaters. >> ingels: tailgating literally becomes a picnic in the park.at "big" ( cheers ) >> safer: but in off hours, blowing off steam dressed ashero isn't uncommon. that's the boss armed with a gun full of tequila.e work is maybe unlike certain architects that have a very particular style, where it is the auteur.he design principal who-- who makes the i don't have to come up with the best idea. at it-- it is always the best idea that wins. >> michael kimmelman: i think bjarke is-- is really a wonderful spokesman. i would say also for the possibility that

life better for people.n is the architecture critic for "the new york times." he says ingels has combinedery of marketing, a so called "star- chitect." >> kimmelman: it's rare that yoully in their 30s and 40s who get to build big projects. and bjarke has figured that out partly by selling a certaine oldest starchitect model which is a glamour and spectacle. i think is very important nowadays, which is to combine a notion of his own work with somee. >> safer: but the thing that strikes me is a lot of people are willing to lay down billions of dollars-- >> kimmelman: billions. yeah, with a "b", yeah. >> safer: --on this kid. >> kimmelman: ( laughs ) yeah.s a gamble. he's got a lot of work coming down the pike. how is he going to make sure that work is not recycled, isfinished well?

criticism by other architects. >> ingels: the more you are upthe more it's going to inspire praise and criticism. >> safer: and in your case? >> ingels: we have a fair amount the opposite. and i think if you were t-- if you were to take all of that to to-- you know, draw a line or-- or lay a brick.ls has become a celebrity at home in denmark, where he's designing the new headquarters of the most iconic at the topping off ceremony in october, townspeople waited in line in the rain to catch a glimpse of the new building and its architect.steel is the tieback. >> safer: that fame has also allowed him to take more risks and add more spectacle to his creations.a chimney that belches steam rings.

copenhagen.es as a ski slope. i mean, the building says, "come and look at me." >> ingels: yeah, since this power plant is really saving a almost a complete reversal of the symbolism of a chimney. >> safer: the idea for thenally started as a joke. >> ingels: normally, you would want to be as far away from a power plant as possible because it's polluting, it's noisy, it's smelly.o clean that you essentially have clean mountain air on the roof of it. and we thought, "maybe it would a ski slope." and so, "yeah, great idea, like, let's get serious." but then, when you stop laughing, it-- it felt like, "wait a minute, maybe this is actually a good idea." >> safer: never mind the starchitect appellation. you're a activist.you're just reaffirming the status quo, then you are missing the point that.

has to count. >> safer: particularly this one.rade center, the final tower set to rise on the site. >> ingels: two world trade iss one world trade, but without the spire. and if you see it from here it-- series of seven city blocks of-- of different proportions stepping up towards the sky.ve been a dir-- very difficult assignment given that so much part of new york is hallowed ground. >> ingels: oh, yes.e is so complex. there's, like, 11 subway lines. there's, like, multiple highways, service roads, power plants.nd is like an anthill of complexity. so, i was, like, really scared that now we were getting, like,ime, and we would be so restricted that it would be almost impossible to come up with something.

different. >> safer: developer larry silverstein bought the original twin towers just weeks beforeas spent the last 14 years on the site's redevelopment. did you have any qualms about--y young architect? i mean, most architects don't come into their own until their 60s or even 80s. ( laughs )here he is, 40 looking like 20. i said, "silverstein, it's time we're in-- we're in another era." right. the fact that i'm almost 85 years of age, maybe it's timebegin- - be a little more flexible ( laughs ) when it comes to these things. >> safer: the seasoned developere young starchitect have become an architectural odd couple.s very tough for women to walk on for anybody in heels. if you talk to our people, our

unmitigated disaster. >> safer: the rebuilding effort at the world trade center has been long and tortured, full ofd plans. tower two is no different. in 2005, the job designing it had gone to preeminent architectoster, a british lord no less, but the proposed tower was never built. when rupert murdoch and his sons headquarters to the site, they brought in ingels. and foster's design was scrapped.was a palace coup and-- and foster was out. but foster was designing, really a different project for another client.over one of the world's leading architectural firms- norman foster. how did you pull that off?n that had already been designed for the site was m-- was very much - of

and as the whole neighborhood has changed, what was needed was-- was a different kind of building.eeds to change. >> safer: which it did yet again when rupert murdoch went fromand pulled out of the deal to move to two world trade, leaving silverstein on the hook to find a new tenant alt. >> ingels: the second we have designed them and built them, they belong to everybody.e is acutely aware of his responsibility with the tower'sis forever etched in all of our minds. >> ingels: i got a letter from a brother of a firefighter that/11. and he just wrote me to say that, i see it as a giantevoking the heroic stair climb of the first responders at 9/11. and to him, he thought the

and sacrifice of 9/11. i couldn't claim that we had that we have thought of it like that. building without also seeing-- seeing that interpretation. >> safer: it must be a gr-- a great honor to have gotten that commission.ably the most watched skyline in the world. so it's definitely a place where-- wht. s cbs sports pup date is brought to you by the lincoln motor company. i'm greg gumbel. the ncaa tournament begins tuesday nougat with the first four on trutv. the round of four gets under way on cbs.t on thursday. the overall number one is kansas in the south. it's acc champ north carolina in the east, virginia the top seed in the midwest and oregon out west. for more information, go to

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>> bill whitaker: in the mail this week, viewers wrote aboutemned prisoners on death row in

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