david lui has a look at the finished result. sts down and make homes affordable. the revolution happening in union city at vive, where they are taking lessons from advances in the aviation and auto industry and using new materials. they are using hps, high performance services. >> this is a high quality material, super rigid, cannot be scratched or stained. it is an antibacterial material. david: hps can be polished and molded into seamless countertops and sinks. groups can be cut making it unnecessary to add metal. prefabricated and sent to building sites are because it is scratch free, there is no risk of damage while in transit. hps is 25 times more expensive than drywall, but the -- but the -- but vive has managed to keep costs the same. they are not set crescent quality. one of the interesting characteristics about the house is it is quiet. you wonder why am i holding an umbrella, because the secret sauce in the house is the ceiling. it is not solid, it is made out of fabric that absorbs sound. new materials and innovation h

abc seven news reporter david lui attended a rally in san jose that many hope will lead to more protectiond their supporters. 50 at base workers have been killed in the last four years and others have been assaulted. this college educated immigrant from columbia shared what happened to her last year as she took a passenger from san francisco to the east bay. >> [speaking spanish] >> a drunken passenger assaulted me, grabbing me by the hair while i was driving my car. >> this comes as members of the u.s. house and senate have sent members to the ceos of lift, uber, instacart, grubhub, and doordash, asking for details on how they protect their drivers and statistics on injuries, what could be a first step into congressional action. a spokesperson told abc 7 news, we are committed to doing everything we can to help protect reiber's, and commit to take action that will invest in technology and partnerships to make lyft as safe as it can be. when it detects irregularities during a ride, it will contact drivers to see if they need help. a lift driver at this rally has a list of implements. >> sc

david lui has a look at the finished results. >> wood and drywall has been traditional materials to buildamily housing, but that is changing in an effort to keep construction costs down into make homes affordable. the revolution is happening here in union city where a fabrication plant is taking lessons from innovations in the auto industry by using new materials. they have turned to something called hps or high-performance services. -- high-performance surfaces. >> it is an antibacterial material. >> hps can be polished to look like granite or marble. groups can be cut making it unnecessary to add a metal vent and designs can be printed on it for an artistic touch, prefabricated and sent to the build sites. there is no risk of damage while in transit. hp iss -- hps more expensive than drywall, but they have cut the costs. >> we continue to plan to push costs. >> they have built 140 units in the bay area. housing developers are taking note of the prefab quality. >it is very quiet -- it is very quiet. you do not hear people walking up doors. you may wonder why i am carrying an umbrella. th

david lui has details on how private companies help to save civilian lives. david: the constant russian michelin tax do not have -- do not allow everyone to feel safe. >> we are driving from shelter to shelter as soon as we hear an alarm. david: the company that he works for, just answer, is stepping up, investing along with other partners to beef up ukraine's air defenses. codename sky project it is helping the ukraine military to upgrade technology that will cost millions of dollars. >> they have computers, networking equipment and software i'll -- and software that is old and slow and we are trying to help them upgrade. david: russia has been striking ukraine from ships in the black sea, old technology makes it difficult to match the advanced capabilities. >> some of them are flying very low, and it is hard to hit them. some of them can just change their trajectory during the flight. and, of course we need to collect all of this data. david: ukraine could use a system similar to the iron goal -- i am dumb which shielded citizens from the death and destructi

abc 7 news reported david lui attended a rally in san jose that made -- many hope will lead to more protection your add request for a ride or deliver your food and their supporters. according to research by their allies, 50 at based workers have been killed in the last four years could others have been assaulted. the incidents captured on dash cam's a document the danger that they face. a college educated immigrant from columbia shared what happened to her last year as she took a passenger from san francisco to t e>> a drunken py and physically assaulted me, grabbing me about the hair while i was driving could this has generated anxiety, depression, fear and insecurity. david: this call for action comes as members of the u.s. house and senate have sent letters to doordash, asking for details on how they protect their drivers and statistics on injuries and what could be the first step into congressional action. a lift spokesperson told abc7news we are committed to doing everything we can to help protect drivers from crime. and we will continue to take action and invest in technology, policies,