it's about, quote, 14 people who were slaughtered and many more had their lives ruined. maybe it holds the clue, maybe it doesn't but we can't look the survivors in the eye and ourselves if we don't follow any possible lead out there. do you understand where he's coming from? >> i do understand where he's coming from. and this is an incredibly complex issue, to place a backdoor in the iphone. we believe it puts hundreds of millions of customers at risk. what we think at this point given it is out in the public, is that we need to stand tall and stand tall on principle. there's probably more information about you on your phone than there is in your house. our smartphones are loaded with our intimate conversations, our financial data, our health records. they're also loaded with the location of our kids in many cases. and so it's not just about privacy but it's also about public safety. >> reporter: but in your quiet moments, do you have any concern that you might be able to prevent a terrorist attack by

>> david, some things are hard and some things are right. and some things are both. this is one of those things. >> reporter: and in this case, you believe there are some things that just should never be created? >> correct. >> reporter: but tim cook tells us they talked to the fbi early on, giving them advice, he says, on other ways to best get information from that iphone, to plug it in, to back it up to the i cloud. did they do that? >> unfortunately, in the days -- the early days of the investigation, fbi directed the county to reset the i cloud password. when that is done, the phone will no longer back up to the cloud. and so i wish they would have contacted us earlier so that that would not have been the case. >> reporter: how crucial was that missed opportunity? >> it is very crucial. >> reporter: i'm curious, tim, did you ever think that you'd find yourself at the center of

>> no. this is -- this is not a position that we would like to be in. it is a very uncomfortable position. to oppose your government on something doesn't feel good. and to oppose it on something where we are advocating for civil liberties, which they are supposed to protect, it is incredibly ironic. >> reporter: apple now has until friday to respond to the court's order to assist the fbi in the san bernardino case. david muir, abc news, san francisco. >> we should point out that tim cook did say as well that he plans to fight this all the way to the supreme court, if need be. it will likely end up there. >> it was fascinating with the poll numbers that a vast majority of americans actually support the fbi, saying, crack the phone, but support grew for apple among those who owned smartphones, so, divided. >> yep. but unifying republicans and democrats, young and old.

coming up, a change facebook is hoping you'll really like. >> maybe not just "like" but "love," with a heart. you're watching "world news now."

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and get out to the mall but now i just wait for them to write on my mall >> yes, famous sound. >> anyone you know who's hooked on facebook knows all about the standardized way the giant allows us to like someone's post or content. >> or poke someone on facebook. that's been the problem. you could only "like" something. now facebook is allowing all of us to show a much more broader range of emotion. >> reporter: facebook has long acknowledged the limitations of "like." >> there are more sentiments that people want to express than just positivity or that they like something. >> reporter: so there are more ways to react. >> we have a tremendous problem. >> reporter: take that new "game of thrones" parody currently making the rounds. >> the greatest builder is me. and i would build the greatest wall you have ever seen. >> reporter: "winter is trumping." it was originally produced for the australian broadcasting corporation. well, instead of thumb's up, you can now give it a love or a wow or ha-ha or even a sad or an

very much. >> reporter: a feature that advertisers like chevy are already looking to exploit. >> start loving. >> reporter: so far, love is the most popular option. in general, that is. what's not to like about that? david wright, abc news, new york. >> interesting. i like the fact that they don't have a dislike button. >> i wish they did. there's so many comments on -- >> positive feelers out there. >> but there's so many things that we would like to dislike that gets posted on our timeline o our wall, on facebook, don't you think? >> you have to accentuate the positive. >> you do. i'm just negative nellie over there.

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you feel that energy that is going on in the room? >> sure do. >> it is not because it's friday eve. it's because we're now three biggest night as oscar preps kick into high gear. >> it's exciting. into oscar weekend. the glamour is a highly specialized process of tabulating those votes surrounded by security as abc's brandi hitt shows us. >> reporter: they are the best secret keepers in hollywood. martha ruiz and brian cullinen are set to carry those famous briefcases again. >> and the oscar goes to. >> reporter: holding the names of this year's oscar winners. has there ever been a mistake? >> no, there hasn't. >> reporter: for 82 years pricewaterhouse coopers has counted the oscar ballots. 6,261 sent out to voting members this year on paper and online. >> we control everything from the time they go out indicated with security codes, and those come back to us. we then have those in an undisclosed location.

undisclosed location security is tight. there's a specialized alarm system, biometric locks and no internet access, where a small team counts all 24 categories by hand. >> it's up to brian and i to then consolidate everything, make sure we're going through their piles, counting that and recounting that. we will stuff the envelope, close it, seal it with the red. >> reporter: those 24 winning envelopes and a duplicate set are then loaded into two briefcase like this one. both are locked in a vault until oscar sunday, when ruiz and culinen enter their code and take their briefcase. each traveling a different route escorted by los angeles police. >> no matter what happens, at least one of us will get there. >> reporter: do you feel a little bit like 007? >> a little bit. >> reporter: last year as a spoof, they even carried a third briefcase used by host neil patrick harris, and backstage

the presenter just seconds is this the hardest secret to keep? >> it's a big important secret. the reality is, there's a secret we keep forever, and that is, who got second? >> reporter: brandi hitt, abc news, los angeles. >> interesting. abc is the place to be oscar night. live coverage starting at 7:00 on sunday, 4:00 p.m. pacific time of course, tune into "world news now" next monday for a complete wrap-up. >> it's going to be a fun night. was this bjork's outfit?

>> who wore it better?the person police are looking for. only on 13 action news...this dramatic video of a deadly fire. a woman was just trying to save her pets when she got trapped inside. good morning las vegas! let's get right over to dayna with breaking news. autoped-vo

for a driver involved in a deadly hit and run crash. the crash happened just after 11 p-m last night near boulder highway and warm springs. a woman was crossing the street when she was hit. she was not in a crosswalk. the woman died at the scene. the car that hit her fled... and police say the car that man was driving was stolen...it's a 2003 silver mercedes c-l-k. the license plate is l-v-u-1-k- 7. right now... police are searching for another hit and run driver who crashed into a fence and took off. this happened around 1 a-m near russell and arville. if you have any information on either of these crashes please contact police.. right now.. fire in malibu california no