narula advised me to s mine up via a mobile app called co-pay. are you being watched? now is the perfect time to assess your surroundings. nearby windows? chiddera? shoulder spies? apparently not. anyone with your backup phrase can access or spend your bitcoin. you can make a safe backup with physical paper and a pen. i understand. the backup phrase is literally your personal key: a dozen words in a particular order. and so these are jusn12 sort or ram words, all simple words. >> yup. english words. that way it's easier to write down. and even if you lose thiphone, right, even if this phone falls into the ocean-- >> reporter: yes. >>s ou can use those 12 word get your money. >> reporter: but if you lose the phrase, bye-bye bitcoin. >> the company that made tt s app doesve access to your money at all. only you have access to your money. d what that means is that if you lose this, you can't call them up and ask them to help you it's gone.oney back. >> reporter: forever. so now i'm writing these down. yup. >> reporter: i have to do this so that the camera doesn't see. >>

tara narula has more. >>> and a preview of meghan markel anchored by gayle king as we take a look atkel's life leading up to her wedding. >>> that's the "cbs morning news" for this friday. thanks for watching. have a great weekend. -- captions by vitac -- www.vitac.com i'm michelle griego. and i'm anne makovec, in for kenny choi. time is 4-- >>> good morning. it's friday, april 13th. you're taking a look at the beautiful bay bridge sparkling there. it's friday, april 20th. i love the dancing lights. when you're driving, pay attention to the road. >> good morning, i'm michelle griego. >> i'm kenny choi. >> it's going to be a nice weekend. your headlines today above average temperatures. warmer than yesterday. so if you enjoyed the warmer air yesterday, temperatures are on the rise. high pressure is closer to california so that means for this weekend, look at this low to mid-80s in a lot of inland areas this coming saturday and sunday. it will stay that way for a few days as the warming trend officially starts now. >>> chp on the scene of a crash westbound 580 right at north flynn road

tara narula. >> good morning. >> they call this nightmare bacteria. what does that mean?it doesn't sound good. >> that i know. >> they're predominantly untreatable. they tnd to be uncommon and they also can carry genes that can spread resistance to other bacteria. they're a big problem for hospitals and nurses facilities. they have a high mortality rate. in this study they took about 6,000 samples and they found of thoerks 211 were unusually resistant bacteria. 25% of them carried those genes that could be resistant genes they could pass on. when they looked at asymptomatic contacts, 11% of those also were carriers or essentially colonized. the cdc said this was way more than they expected in terms of numbers and probably underestimates the true numbers. it is pretty scary. >> the report highlights the cdc's containment strategy. what is it and is it working. >> it's not really a new thing. essentially they liken it to stopping a a wildfire. the idea is to catch these things when they're a spark or small fire, to extinguish them before they become a wildfire. it's really

tara narula is here to help us out. >> hi, john. good morning. happy spring. >> happy spring maybe.ful, and why? >> the misery you're feeling and it seems to keep increasing every year. you're not imagining that. the climate and the weather has an impact on the start, the duration and intensity of allergy season. with global warming, last year was one of the hottest on record and increased carbon dioxide emissions. thus all fuels the growth of plants which means more pollen, earlier pollen and pollen that stays around longer. in 2000, about 8,000 pollen grains per meter cubed. in 2040 it's projected to be around 20,000. >> wow. >> so explain to those physiologically what happens. the pollen causes and effects these allergies. >> essentially it's a mix of the environment and your exposure and genetics. we're constantly scanning the environment for threats. in people predisposed to allergies, it makes them pick up on pollen as an allergen, as some sort of intruder. you sound the alarm and mount an attack. you generate antibodies but that then bind to certain cells that release these m