on paper or in a test you but didn't work in humans or were actually harmful let's talk now to tom phillips he's the editor of full facts and leads a fact checking team and joins us by skype from london good to have you with this on the news where we've heard about how dangerous it can be to to follow advice misinformation but just give us a sense of a difficult it is to actually separate the facts from fiction particularly given some of the challenging statements of leaders worldwide. yeah i mean this is a real problem because obviously this is a new virus and so there's a lot that we don't know about it or that medical experts can only surmise due to its similarity to other viruses so there's genuinely a lot of real uncertainty and in a situation like that it's very possible for misinformation misleading information to circulate often that's based on partial truth but is blown up way out of context or misunderstood in some kind of way that leads it to become potentially quite dangerous it doesn't eat and the reason i mentioned the reason i mentioned the conflicts going from asian from wor

tom? >> kyra phillips for us tonight.hank you. >>> there's still much more, including an explosion in downtown los angeles and an ambulance stolen. stay with us. beautiful. but support the leg! when i started cobra kai, the lack of control over my business made me a little intense. but now i practice a different philosophy. quickbooks helps me get paid, manage cash flow, and run payroll. and now i'm back on top... with koala kai. hey! more mercy. (vo) save over 40 hours a month with intuit quickbooks. the easy way to a happier business. doprevagen is the number oneild mempharmacist-recommendeding? memory support brand. you can find it in the vitamin aisle in stores everywhere. prevagen. healthier brain. better life. aleve it. with aleve pm. pain happens. the only one to combine a safe sleep aid. and the 12-hour pain relieving strength of aleve. so...magic mornings happen. there's a better choice. aleve pm. (click) ♪ i promise that you'll never find another ♪ ♪ like me-ee-ee ♪ ooh-ooh-ooh ♪ i'm the only one of me ♪ ♪ baby,

tom? >> kyra phillips with the new reporting tonight. thank you. >>> next to the 2020 race for president. that once diverse and sprawling democratic field now down to essentially two candidates, bernie sanders versus joe biden. the former vice president hoping to carry momentum into a new round of pivotal contests next week. and the senator in attack mode. here's abc's rachel scott. >> reporter: in st. louis today in his trademark aviator sunglasses, joe biden acting every bit the frontrunner. strengthened by a boost in fundraising and support -- [ cheers and applause ] today holding one of his largest campaign rallies this cycle. >> what a difference a week makes! >> reporter: he's picked up key endorsements, including eight from his former rivals. >> folks, senator sanders likes to say you'll need a record turnout to beat president trump. he's right. we're the campaign that's going to do that record turnout. >> i have been with joe, but i also really liked pete, and so i was kind of back and forth. but when pete dropped out, there was

tom steyer and i approve this message. >> by the mid 1960s the queen and prince phillip are increasingly eclipsed by prinpr margaret and herve-city tour. they take the united states by storm. >> they are on an official visit representing the queen and are treated like movie stars. >> margaret is possibly the first royal celebrity. she and elizabeth taylor are the two most photographed women in the world. >> they touched down in san francisco to mobs and the best glimpse they got of them was when they took a ride on the famous san francisco cable cars. >> appealing to the americans is the fact this is a very informal visit and every newsreel, newspaper and tv company did it's best to supply the demand. >> people were running alongside the cars just trying to get a glimpse or something. >> princess margaret's next stop is the epicenter of fame and glamo glamour. hollywood. they tour the movie studios. >> hollywood may be city where dreams are made and doesn't leave much time to relax. >> they receive an open arm welcome on the set of the hitchcock film "torn curtain." meeting julie andrews and they are having a ball. >> just

and tom hanks tweets that he and his wife have tested positive for the coronavirus while visiting australia. >> but it's trump's speech that is getting the most attention overnight. abc's kyra phillips. >> this is the most aggressive and comprehensive effort to confront a foreign virus in modern history. >> reporter: president trump restricting travel by foreign nationals coming to the united states from 26 european countries. the restriction does not apply to u.s. residents and green card holders or to travelers coming from the uk, ireland, and several other countries. he initially announced the suspension would include trade but had to clarify on twitter. please remember, very important for all countries and businesses to know that trade will in no way be affected by the 30-day restriction on travel from europe, the restriction stops people, not goods. still, the president quick to blame the european union. >> we made a life-saving move with early action on china. now we must take the same action with europe. >> reporter: and announcing plans to help offset the costs of medical care. >> earlier this week i met with the leaders of health insurance industry who have agreed to waive