julia mcfarland, abc news, rome. >>> scotland yard raided addresses hours after a car rammed barriersigators say the man was not known to police before the incident. the british government opted not to raise its terror threat level after the attack, leaving it at severe. >>> los angeles is beefing up anti-terrorism security for its mass transit system. it is the first in the nation to use body scanners to detect explosives. the units are portable and can be moved to any station if there's a threat or major event. passengers can be scanned without slowing down. >>> let's turn to the showdown between the president and omarosa, now declaring that she will not be silenced. president trump called his former aide a lowlife and dog. his campaign is taking legal action against her, saying she violated a secrecy agreement. but omarosa as undeterred as she peddles her new book that is out. she released a recording of aides discussing whether there might be a tape of the president using the n-word on the taping of "the apprentice." >> i can't guarantee anything, but i can tell you the president

julia mcfarland, abc news, genoa. >>> we are now learning the name of the man accused of crashing andide of parliament yesterday in london. british media outlets are identifying the suspect as 29-year-old sali cotter. he's a british citizen of sudanese origin. investigators have raided several properties in central england for evidence. this was the fourth vehicle attack in britain in 18 months. >>> school is back in session at mar stoneman douglas high school in parkland, florida. students returned six months after the shooting that killed 17 people on valentine's day. they were met with $6.5 million in security upgrades, including a single surveillance cameras, new locks on >> i think everyone's glad to get back and be reunited. there are a lot of emotions going on. it's still a challenging time for many of the students and faculty. >> also today shooting suspect nikolas cruz attended a hearing where the judge scolded the south florida sun sentinel for publishing details about cruz's education -- the judge stopped short of holding the newspaper in contempt. >>> well, those unused va