this is the "cbs weekend news." >> strassman: good evening, i'm mark strassman, reporting tonight from houston, texas. harvey, the most powerful hurricane to hit this state since john f. kennedy was president, is now a massive tropical storm. it is expected to churn over southeast texas well into the week, dumping more than four feet of rain on areas including houston. in a tweet, the national weather service said "the breadth and intensity of this rainfall are beyond anything experienced before." more than a thousand people were rescued here today from flooded cars, homes, and businesses. many had to scramble to rooftops to escape. at least two people are confirmed dead, but officials fear that number will rise. harvey made landfall along the gulf coast of texas friday night as a category four hurricane, with a tremendous surge of sea water, and winds of 130mph. the coastal town of rockport took a direct hit. homes were blown apart. the monster storm, roughly 600 miles wide, is also unleashing tornadoes. though officials say the biggest threat now is the catastrophic flooding, includi

more than 1,000 rescues have been made. >> i've been trapped on this overpass all night. >> strassman: and a reporter saved a man's life on live tv. >> there's a truck driver stuck here in about 10 feet of water and here he comes. i feel like i can finally breathe.

mark strassman is on the strip with what some say is a discrepancy in the law. >> reporter: anything goes in vegas right? wrong. on the strip, buying marijuana legally is one thing. smoking it is another. nevada law mandates that legally bought marijuana be consumed in a private residence. nothing public. which includes casinos, one owner of the dispensary says the law puts most of his customers in a tough spot. >> about 70%. 80% are tourists. that's the problem. >> reporter: eight states that have legalized it. implementing the new drug laws has been challenging. for instance people in california and massachusetts may possess it or grow it but not buy or sell legally until next year. sales are legal in colorado, nevada and washington but for now public consumption is banned. state senator supported legalizing marijuana here. >> people are already buying it. people are using it. so this is not something new. it's just let's go ahead and take that extra step and acknowledge that fact. and provide a venue for them where they can have fun. >> marijuana has a place in sin city. >> mariju

mark strassman joins me now. you have seen some of these rescues. >> reporter: we have, and on so many levels, the deluge of rain is matched by a deluge of need in the flood zone. fema estimates 30,000 evacuees would need shelter within a couple of days. more of houston's flood survivors left rooftops in a basket today. 20 coast guard helicopters have plucked more than 300 harvey victims to safety. but officials admit there aren't enough helicopters, boats or high water vehicles to reach everyone. emergency systems were overwhelmed. by this morning 75,000 people had called 911 desperate for help. >> i know yesterday we pulled 76 people to dry land. >> reporter: 76 people. >> 76 people, one day. >> reporter: in one day. mike hawthorne, a captain with the houston fire department said volunteers with boats and trucks have been lifesavers. >> the need is overwhelming. the government has resources but we don't have enough. >> reporter: many victims are tweeting for help in real time. civilian rescuers are checking soc

mark strassman, new york. [ cheers and applause ] >> "cbs overnight news" will be right back. take care of that spot on your skin? if you're a man over 50 you're in the group most likely to develop skin cancer, including melanoma, the cancer that kills 1 person every hour. check your skin for suspicious or changing spots and ask someone you trust to check areas you can't see. early detection can put you in a better spot. go to spotskincancer.org to find out what to look for. a message from the american academy of dermatology captioning funded by cbs >>> it's friday, august 4th, 2017. this is the "cbs morning news." a grand jury is now being used in the russian election meddling investigation as president trump continues to dismiss allegations of collusion. >> the russia story is a total fabrication. it's just an excuse for the greatest loss in the history of american politics. that's all it is. >>> plus, one of the world's tallest residential buildings goes up in fl

we have a team of correspondence across the zone of totality and begin with mark strassman. >> oh, it is almost complete. >> reporter: across america the clock work of the cosmos turned day into night, and then day again. for one afternoon, millions of people looked up at the sky rather than down at their phones. >> oh, my gosh! >> reporter: 200 million americans live within a day's dry of the path of totality and many hit the road to witness the laws of nature go topsy-turvy. >> have a good time. >> reporter: 100,000 star gazers served into madras, oregon, population 7,000. when the magic moment arrived, totality, people across the country gazed in wonder including our team of cbs news correspondents. >> this is just incredible. >> yeah, it is gone! it is gone. >> we're in darkness. take our the glasses! >> reporter: satellite imagery showed the trajectory sweep. from the pacific northwest the eclipse raised 2500 miles across 90 minutes. it was just as riveting from 30,000 feet. >> you'll have a nice view of the sun off the right-hand side of the aircraft. >> reporter: in greenville,

strassman sat with zimmer for a look at the man behind the music. ♪ frd is . >> dun kirk has been hailede. but what you hear, the film's sweeping musical score is the latest genius from composer hans zimmer. >> i wrote by going to the beach, picking up the sand, seeing the misery on that beach. you have to get a movie under your fingers. simple as that. >> the german found inspiration from his own past. >> it's a movie about people escaping germans. jewish mother escaped the germans in 1939. was it personal? >> yes because i approached it at first of course as somebody who wouldn't be here had my mother not escaped the germans. >> did you think about your mother. >> very much. >> the 59-year-old zimmer has scored nearly 150 movies. >> every job starts the same way. either see a director or get a phone call and somebody says i want to tell you a story. >> his story began in frankfurt, germany as a kid had two weeks of piano lessons that's it. ♪ video skilled the radio star ♪ >> played in the 70s in the hit "video killed the radio star" it was the first music video ever played on mtv. >> f

mark strassman, new york. [ cheers and applause ] >> "cbs overnight news" will be right back.some funny rashes. finally, listening to my wife, went to a doctor. and i became diagnosed with hodgkin's lymphoma ...that diagnosis was tough. i had to put my trust in somebody. when i first met steve, we recommended chemotherapy, and then we did high dose therapy and then autologous stem cell transplant. unfortunately, he went on to have progressive disease i thought that he would be a good candidate for immune therapy. it's an intravenous medicine that is going to make his immune system evade the tumor. with chemotherapy, i felt rough, fatigue, nauseous. and with immune therapy we've had such a positive result. i'm back to working hard. i've honestly never felt this great. i believe the future of immunotherapy at ctca is very bright. the evolution of cancer care is here. learn more at cancercenter.com appointments available now. >>> millions of americans use sharing services like uber and air bnb but no more is it more popular than in china. it's gotten so big some feel china may be

. >> yeah, and the crossroads, mark strassman, will be here again in carbondale, illinois. we had a total eclipse today, there will be another one in seven years. tens of thousands came here to southern illinois university in carbondale to watch the total eclipse. some came for fun, some for the science. here is adriana diaz. >> reporter: totality was a golden opportunity for nasa scientists like lou gallo. >> this is game day, like the superbowl of eclipses. >> reporter: they gave superbowl worthy words as the u.s. caught its first glimpse in oregon. >> it is amazing, fantastic. >> reporter: because of the potential for data collection, nasa covered it like the big game. they aimed 14 satellites, flew ten airplanes, launched upwards of 70 data-collecting balloons and deployed telescopes along the path of totality. why is it important to study the sun's corona? >> the most simple answer is we're explores. it is in our genes so we explore the universe. >> reporter: even though carbondale only got a shot of totality for about ten s nasa tells us they were able to collect data