brush, investigators yesterday found this. >> we believe these are the bodies of the two suspects wanted in connection with the homicides in british columbia. >> reporter: how the teenagers died is unclear. why they apparently murdered three strangers remains a mystery. what is clear, norah, is the relief that it's over. >> mark strassmann, thank you. breaking news as ice agents today carried out the largest statewide sweep of workplaces for undocumented immigrants in u.s. history. about 680 migrants were rounded up at seven food processing plants in six citisaes in mississippi. omar villafranca has that story. >> reporter: the sting was the largest single-state workplace raid in a single day. more than 650 special agents conducted raids at food processing plants, arresting the majority-latino workforce and several employers. before their hands were tied, migrants were told to place their personal belongings in plastic bags.

they were then taken for processing to the mississippi national guard station near jackson. one of the locations targeted was pico foods, which has 3,600 employees in mississippi. pico is the eighth largest poultry producer in the country. at a press conference today, u.s. attorney michael hurst put businesses that break the law on notice. >> to those who use illegal aliens for a competitive advantage or to make a quick buck, if we find that you have violated federal criminal law, we are coming after you. >> reporter: back in 2008, ice raided a different mississippi plant and arrested 595 undocumented immigrants. patricia ice is the legal director of mississippi immigrant rights alliance. what does this do to the families that were not at the plant? >> it's devastating. children may go home and find that their parents aren't there. >> reporter: immigration officials say the migrants will be sent to a facility in louisiana for further

processing. and patricia ice said some could be deported and others could enter the long immigration process. >> all right, omar villafranca, thank you for those late details. a big portion of the east coast is getting pummeled tonight by severe storms. a too he this afternoon in springfield, new state this year. the garden some buildings were damaged and trees knocked down. buckets of rain caused flash flooding on highways, and there's plenty of lightning as the storms move through. >> good morning to you and welcome to "cbs this morning."

a women's natural lubrication varies throughout her cycle. this can effect how pleasurable sex can be. to supplement your lubrication for even better sex try ky natural feeling. the lubrication you want, nothing you don't. ky natural feeling get what you want a cbs news investigation looks at the changes made by law enforcem brown in ferguson, missouri, five years ago this week. the unarmed black teen was killed by a white officer. there were months of protests, and we reached out to more than 150 police departments. 69% of those that responded said they now have training to confront racial bias. in our series jeff pegues met

with some officers who say it's not working. >> reporter: what do you think the image of mesa p.d. is? >> embarrassing. >> reporter: with their identities concealed, these two white mesa, arizona, police officers are speaking freely about their department's implicit bias training. >> people are inclined to stereotype black individuals as more aggressive. >> reporter: an effort to confront historical prejudices in their department's ranks. >> the training itself, the contents, was the absolute worst training we had. >> reporter: all right, so what do you think the agenda is? >> reinforcing that the police are racist, but specifically the white male police are racist. >> reporter: we heard the same criticism of the training in the phoenix police department, too. we also agreed to put the face of this white officer in shadow. >> i don't know that it opened my eyes too much to too much more. >> reporter: will it change how you do your job? >> no. >> reporter: why not? >> i don't think i was doing it incorrectly to begin with.

>> reporter: what do you think has come out of these changes that you don't think are good? >> officers second guessing their actions. >> reporter: officers second guessing their actions? >> correct. >> reporter: so they're thinking too much on the job? >> knowing that what i do right now is going to be judged. >> reporter: sounds like that could be dangerous. >> deadly. >> reporter: but st. louis metro sergeant heather taylor, president of a local black union with nearly 19 years on the force, says the problem in her department is obvious. do you think that there are white supremacists on the police force? >> yes. i think so. >> reporter: you didn't even pause. >> have you seen some of the facebook posts of some of our suspended officers right now? yes. >> reporter: taylor is referring to the recent report by the plainview project, which found more than 400 racist posts on social media linked to current and former st. louis metro police officers. five years after the ferguson protests, the debate over implicit bias training continues.

has it worked? >> i think that's pretty obvious that it hasn't. >> reporter: based on our investigation, it is difficult to say conclusively whether implicit bias training is effective. about 59% of the police departments across the country that responded to our follow-up questions say that they don't have a way of measuring if the training is actually working. norah. >> jeff pegues, thank you. and jeff's series continues tomorrow on "cbs this morning" with a look at how the f.b.i. for the first time is tracking the use of force by police. next our exclusive interview with tiger woods on his comeback and why his kids worry about him. and later, can e-cigarettes cause seizures? and how an american flag was lost and found.

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>> the return to glory. >> reporter: it was a return to glory for tiger woods at the masters in april and a chance to finally share the moment with his two children-- charlie, who is 10; and samantha, now 12. until his fourth back operation two years ago, tiger could barely walk. self-inflicted scandals had ended his aura of invincibility on the course. but time away from golf transformed him into a full-time dad. when we caught up with him today he reflected on what that master's win meant to tiger the father. >> daddy has won golf tournaments. he's not the youtube guy. he's not the youtube golfer. they've seen highlights. you know, that they've seen the highlights. >> reporter: like a video game. >> they've seen highlights of that guy. i'm not that guy. i can still do it. >> reporter: there are still mixed emotions for his kids. >> i am just dad. that's all they know, i'm dad. and they associated golf with pain. and that still is one of the

tougher things that they're both excited on playing again, but also "you okay, dad?" that kind of thing. they remember those times when dad couldn't get off the couch. >> dana jacobson joins us now. it's very rare that tiger ever does an interview, meanwhile playing. >> i've known him about 15 years now. i reminded him of that. he sort of laughed about it, and then he just talked about how appreciative he is, and that was never more apparent then today. we were on the same hole where six years ago he collapsed in pain after hitting a shot. and he was so happy to be back, so happy to share that with everyone. i reminded him, you're not just back here playing. you're the reigning masters champ. he got the great tiger grin and said, "crazy." isn't it? >> he was a little stiff today. >> reporter: we're getting older as i reminded him. >> dana will have more of her interview on "cbs this morning" tomorrow. and you can watch the northern trust tournament right here on cbs. still ahead, what's causing a rise in mercury levels in some seafoods.

freedom came today for cyntoia brown. she was released from a tennessee prison after serving 15 years of a life sentence for killing a man who hired her for sex when she was just 16. celebrities, including kim kardashian and lebron james, pushed for brown's clemency, calling her a victim of sex trafficking. brown, now 31, and recently married, will remain on parole for 10 years. new today, the food and drug administration is stepping up its investigation of a possible link between e-cigarettes and seizures. the agency says it's received 127 reports of people suffering seizures after vaping. that since 2010. now, the evidence does not yet point to a cause, but high levels of nicotine are known to cause seizures in lab animals. and we have important news if you eat a lot of seafood. mercury levels in fish are rising. they're up 23% in atlantic cod,

56% in atlantic bluefin tuna. studies say climate change may be to blame by altering their feeding patterns. high levels of mercury can cause neurological problems in children. up next, a banner day for a couple of veterans. >> we end tonight with a grand story about a grand old flag. >> it was dropped somewhere between there and the beltway, right down there. >> as william holley was moving to a new apartment in maryland, an american flag in a display case fell out of his truck. it honored his uncle, world war i vet marcellus herod. >> we figured somebody stopped, picked it up.

and headed on out. >> somebody did, navy veteran tom jarrett. >> i do know how important that flag is. it's presented for sacrifice for the united states of america. >> jarrett turned the flag over to the police, and this youtube video helped track down holley. >> thank you very much for your patriotic duty. >> in a solemn ceremony, holley, himself an army veteran, was reunited with the red, white, and blue. >> this means a lot to the family, but as fellow veterans, we understand the story behind this flag and what it stands for. >> mission accomplished. holley has old glory in his new home. and speaking of sacrifice, today is national purple heart day. the purple heart is the nation's oldest military medal for service members. it was first given by george washington in 1782. i'm norah o'donnell. thanks for watching. hope you'll join us again tomorrow. good night.

♪ ♪ >> announcer: this is the "cbs overnight news." >> welcome to the overnight news. i'm omar villafranca. president trump is back at the white house this morning after playing the role of consoler in chief in dayton, ohio, and el paso, texas. the two cities were racked by mass shootings last weekend. but it was not altairs and hugs during the president's visits. he was also met with angry protests from people who say his words helped spark the violence. janet begins our coverage in el paso. >> 22 people died. >> reporter: tempers flaring at the el paso walmart me more yoe even before the president's visit today.

mourners telling a woman twaweag a maga hat it was disrespectful. a large group turned out near the hospital the president visited. >> he put a target on our back and all these people are dead. >> reporter: becky and her husband are angered by the president's divisive rhetoric. >> he doesn't care. if he cared, he would do something about it. he doesn't. >> reporter: president trump and first lady melania met with victims and first responders, but largely stayed out of public view. a front page editorial in the el paso times attacked the president for characterizing this border town as one of the most dangerous cities. in his state of the union speec. >> thank you so much. >> reporter: congresswoman veronica escobar turned down a white house invitation to join mr. president trump. >> here he comes. >> reporter: this morning the president was in dayton, ohio, in the role of comfor shooting which killed nine

people. he visited with first responders and victims. this photo was taken by hosp personnel. press cameras were denied access to the events. outside -- angry residents along the motorcade route and at the hospital accused the president of doing nothing to stem gun violence. >> we're going to dayton first. >> reporter: as the president was leaving the white house this morning, he said he would bring up an assault weapons ban, but said there was no political appetite for it at the moment. that may be the case on capitol hill, but in a recent poll there seems to be plenty of will to ban the sale of assault weapons. the hostility both here and in dayton is unusual at a time of national tragedy and makes it even more difficult for the nation to heal. >> before he left for dayton, president trump engaged in a little verbal warfare with vice president joe biden. ed o'keefe has that part of the story. >> we have a problem with this rising tied of supremacy, white supremacy in america.

and we have a president who encourages and emboldens it. >> reporter: former vice president joe biden in iowa today accused president trump of inspiring mass shootings in texas and pennsylvania. >> how far is it from trump saying, this is an invasion, to the shooter in el paso declaring, quote, this attack is a response to the hispanic invasion of texas? how far is it from white supremacists and neo-nazis in charlottesville, trump's very fine people chanting, you will replace us. to the shooter at the tree of life synagogue in pittsburgh saying, juice aews are committi genocide on his people. i don't think it's that far at all. it's both clear language and in code. this ptd hresident has fanned t flames of white supremacy in

this nation. >> reporter: biden, the democratic party front runner noted white nationalists and ku klux klan leaders had celebrated mr. trump's 2016 election. >> our president has more in common with george wallace than george washington. trump is trying to weaken our institutions. the courts, the press, the congress, precisely because they are the only checks on his power. that's what this is all about. r, the abuse of power. >> reporter: as biden spoke, the president tweeted from air force one, calling biden's speech so boring. told later about the tweet, biden replied? >> he should get a life. >> reporter: >> cbs news has learned the president was outraged and began writing the speech over the weekend. we also spoke with the trump campaign which pointed out the president's response included denouncing white supremacy. one other note. trump aides noted the pittsburgh synagogue shooter had posted anti-trump messages on the

internet. >> there was terror at the crossroads of the world. loud bangs sent hundreds running for their lives in new york city's times square. it was president gunfire. just a motorcycle backfiring. nikki battiste has the story. >> reporter: hundreds of people panicked and started running for their lives and ducking into stores for cover after mistaking the sounds of a motorcycle backfiring for gunshots in times square last night. >> we heard pop, pop, pop, pop, pop. >> it felt like somebody came here and started shooting people. >> reporter: police say the stampede caused nearly two dozen injuries. several people were taken to the hospital. >> hats and shoes, anything that dropped, they didn't care. >> reporter: a few broadway shows ended early as scared pedestrians rushed into nearby theaters. nerves were also on edge at a utah mall yesterday. shoppers mistook a falling sign as gunfire and started fleeing. some yelling, he's got a gun. >> it's a new normal. >> reporter: dr. jeff man, chair of psychiatry at

columbia university said the cumulative effects of mass shootings produce high levels of anxiety and fear across the country. so even if you're hundreds of miles away and you hear about these mass shootings it can still have a real psychological impact? >> you wouldn't think so, but it does. so any type of natural disaster and in this case a mass violent attack, has reverberations. some people are more resilient, they brush it off. other people are freaked for days, months and even longer. >> reporter: i just spoke with the n.y.p.d. they told me the public responded just the way they should have, by running and hiding. they also said they have increased police presence since the two mass shootings this weekend. nikki battiste, cbs news, new york. >> more than 500 people were arrested at seven food processing plants in mississippi. and it may be the biggest i.c.e. sting in u.s. history. the sting was the largest single place workplace raid in a single day.

more than 650 special agents conducted raids at food processing plants, arresting the majority latino work force and several employers. before their hands were tied, migrants were told to place their personal belongings in plastic bags. they were then taken for processing to the mississippi national guard station near jackson. one of the locations targeted was pico foods which has 3600 employees in mississippi. pico is the 8th largest poultry producer in the country. at a press conference today, u.s. attorney michael hearst put businesses that break the law on notice. >> to those who use illegal aliens for competitive advantage or to make a quick buck, if we find that you have violated federal criminal law, we are coming after you. >> you're watching the "cbs overnight news." we'll be right back. ♪

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♪ ♪ >> announcer: this is the "cbs overnight news." >> welcome back to the overnight news. i'm omar villafranca. sin toy a brown is a free woman this morning. she spent half her life in prison for a man she claimed picked her up for sex. her cause was picked up by celebrities rihanna, snoop dog and lebron james. errol has her story. >> reporter: her case which has drawn nationwide attention for years already speaks volumes. >> do you understand why you're here? >> yes, ma'am. >> reporter: brown, seen in this 2011 documentary, says

43-year-old real estate agent johnny allen picked her up in 2004 in an area of nashville known for prostitution. she says allen agreed to pay her $150 with the intent to have sex, then drove her to his home. >> he just grabbed me like in between my legs, he grabbed real hard and gave me this look. he rolls over and reaches like he's reaching to the side of the bed or something. i'm thinking, he's not going to hit me, he's going to get a gun. >> what did you do at that time? >> i grabbed the gun and i shot him. >> reporter: brown was 16 at the time, but under tennessee law was tried as an adult and sentenced to life in prison for murder. >> i have prayed for a very long time to -- >> reporter: last year brown got her first bid for freedom before a parole board. >> i am a changed person. because i have no choice but to be. >> reporter: seven months later

governor haslam granted clemency. >> she's a child. you don't throw them away. >> reporter: he fought to keep brown in prison. he's been advocating for her release. >> she has all the potential in the world not to just go and do good, but to actually mentor other people. >> errol barnett reporting. brown, by the way, plans to release a book this fall about her listory. tomorrow marks five years. the unarmed teenager was shot by a police officer who says brown attacked him. it touched off months of protests that grew louder when a grand jury decided not to indict the police officer involved. outraged over similar incidents in other cities led to changes in police training. but is it working? jeff has our cbs investigation. >> reporter: we reached out to 150 departments nationwide. 69% of them told us they have added training that teaches officers how to manage unconscious biases that we all

have including race. more than half of those departments say they have added bias training since ferguson, but when we asked if it works, most say they don't have a way to measure success. some officers even told us that it's made their jobs tougher. implicit bias training, has it worked? >> no. >> reporter: you don't think it works? >> the training itself, the content was the absolute worst training i've ever had. >> reporter: these are current mess a, arizona, police officers. they are both white. we agreed to hide their faces and alter their voices so that they can speak freely. >> and you have to make a decision like that. >> reporter: this is their department's implicit bias training. >> so there's research that has documented implicit biases and they've linked it to ethnicity and race as one. >> reporter: they are taught how to recognize and minimize negative impacts that hidden gg society that hasan males,

one of the first videos introduced in that training was reaffirming that you're born a victim if you're minority. >> reporter: what do you think the agenda is? >> reinforcing that the police are racist, specifically the white male police are racist. >> reporter: to our knowledge, these veteran officers have not been involved in the kinds of high-profile incidents that have divided the community and led to what they see as an over correction in new training. >> trying to change what we have done that has worked overwhelmingly effectively, it becomes an officer safety issue, causing officers to second guess themselves. which is a complete change to when we first started. >> reporter: well, there have been some pretty high-profile incidents here. robert johnson getting knocked ar. brie ramirez, officers squeezed his neck after he was handcuffed. daniel shaver on his knees begging for his life in a mess a hotel room caught on video.

>> there's nothing that those officers did that was outside of the training that they had received. >> that robert johnson video, is that what you're taught to do? >> we're taught to handle a situation. >> reporter: was that handling the situat excessive force? >> that was handling the situation. >> reporter: the officers involved in the ramirez and johnson cases were not charged with crimes. officer philip braillesford was charged with murdering daniel shafr but was acquitted after trial. similar incidents called for police to change their approach. a cbs news survey of departments in america's largest cities reveals part of that response. 75% of departments who completed our survey told us that they changed their training after controversial use of force incidents. 90% of departments who say they have implicit bias training say it is required of all officers. but training methods vary.

for example, honolulu, hawaii told us they have one half hour session a year. raleigh, north carolina, said they do eight hours per year. >> i want our community to feel safe. >> reporter: despite what we heard from the mess a officers, chief ramon batista told us the training is working. >> in the last nine months we've reduced use of force related events by over 30%. points to the fact that we're making progress. >> reporter: but there is no universal measure of success. other city departments we surveyed like new york se ri deucing physical altercations between officers and the community doesn't necessarily mean implicit bias training is working. >> they judged a book by its cover. >> reporter: departments in hauds huh, oregon, georgia, and nebraska told us they track bias complaints against officers to determine success. but about 59% of departments who spornd spor responded to our follow-up

questions say they don't have a way to know if implicit bias training is working at all. these officers say some of the new training is just for show. >> they start the video saying, we are not telling you to do this. we are here to present it. >> reporter: at the beginning of the session they say, don't do this but you have to watch it? >> correct. it kills morale because to pay for this training, we had to give up something else, right? so instead of doing more firearms training, okay, now we've taken the function there, so the officers and morale, they look at it like you don't care about me and you don't care about the citizens. you care about putting on this little show. >> reporter: there are police officers who believe more needs to be done. jeff will have that side of the story when we return. you're watching the "cbs overnight news." i'm alex trebek, here to tell you

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red dress on the first day - bold move. same red dress today - even bolder. fight the fade and keep your red dress red. is it new? no, it's washed in studio by tide. hundreds of officers in multiple states have recently been exposed for posting hateful and racist messages on facebook, twitter and other social media. st. louis and philadelphia are at the center of the controversy. jeff has part two of his investigation policing in america. >> reporter: the st. louis metro police officer that you are about to hear from says the culture among her department's

top brass is allowing bad cops to slip through the cracks. when we asked the department had training to address possible racial bias, the answer wasn't clear. do you think that there are white supremacists on the police force? >> yes. >> you didn't even pause. >> have you seen some of the facebook posts of some of our suspended officers right now? yes. >> reporter: heather taylor is an almost 19-year veteran on the st. louis metro police force. she points to the recent report by the plain view project which flagged thousands of racist and derogatory social media posts, including some from 22 current st. louis metro officers like this one that compared black lives matter to the kkk. as president of the ethical society of police, a predominantly black local union, taylor's mission is to root out racial discrimination among police. protests in ferguson took place about ten miles from st. louis metro p.d. headquarters and led to changes in training there.

slmpd told cbs news in a survey implicit bias training has been mandatory for officers once a year since october of 2014. that's two months after michael brown's death. implicit bias training, they've had that here. >> reporter: has it worked? >> i think it's pretty obvious that it hasn't. >> reporter: if implicit training is mandatory, it doesn't seem to have left an impression on heather taylor. have you been through it? >> no. it was optional. >> reporter: lieutenant cheryl orange, a patrol officer for the department, says she doesn't remember taking it either. wasn't it mandatory? >> not that i recall, but it may have been. >> reporter: we've been trying to get slmpd's police chief to comment on our cbs news investigation that found a majority of departments nationwide are adding training to address possible racial bias. over a period of months there have been phone calls, emails, and each and every time the

police department has declined our request for interviews. there is a change. >> um-hmm. >> reporter: we went to the man who hired the police chief. jimmy edwards is the public safety director for the city of st. louis. we had an officer tell us she knows that there are white supremacists on the police force. >> i'm not surprised. my job is to root that person out. >> reporter: implicit bias training, is it mandatory for all officers? >> yes, it is mandatory. >> reporter: we've talked to officers who don't remember taking implicit bias classes. >> well, everybody in the city of st. louis have taken implicit bias training. >> reporter: and they can't remember it? >> i don't know. that's a good question for them. >> reporter: that's odd. >> it is odd. >> reporter: still, edwards says, use of force incidents are down in st. louis city, which he credits to new training. but he also concedes police have a long way to go before he can assure a black mother he met that changes have taken hold in the department. >> she asked me, can you change our police department? because every time my little black boy encounters a police, i

think one of two things is going to happen. that my child will lose his liberty and go to prison, or that my child will die. we have challenges. but we're overcoming those challenges a bit at a time. >> reporter: taylor says that should include better screening of applicants and breaking down what some have called the blue wall of silence, a term for police cover ups of internal wrongdoing. your fellow officers, they might see your comments and be offended. how do you go back to work after making comments like that? >> because when you know you're doing right, you can hold your head up. i don't think that all of our department is bad, but instead of complaining about me, how about you do something to change the culture that you know exists? >> reporter: it is still unknown whether any police training technique could impact trends in use of force. one reason is because there has never been a federal use of force database to study. but for the first time the fbi is now

back before atms and credit cards, john dill enjer was the most infamous bank robber in the nation. he was killed in a gun fight with the fbi 85 years ago and buried in indianapolis. but some of his family members don't believe it's him. and recently got a permit to exhume the body. john blackstone reports. >> reporter: played here by johnny depp in the movie "public enemy" john dillinger was a ruthless self-assured charming hoodlum with a knack for escaping jail. he was involved with a dozen bank heists making off with $300,000, the equivalent of 4 million today. a police officer was killed in one of the robberies, leading

dillinger to be considered public enemy number one. it all came to a halt when federal and local law enforcement tracked him to a theater in chicago and gunned him down on a sidewalk outside. a month after his 31st birthday. dillinger's infamy jrue thousands of curious spectators who wanted to look at his body before it was buried here in section 44 of the crown hill cemetery in indianapolis. >> it's an interesting story and it just keeps enduring. >> reporter: spiro runs an organization that owns the largest collection of dillinger artifacts. >> he's been dead for 85 years. why is there enduring interest in this guy? >> he created this image of robinhood that people during the great depression bought into. >> reporter: in death dillinger became the focus of books, more than one museum and, of course, movies. but with that also came conspiracy theories about whether he was really even dead. theories his descendants may be trying to clarify.

cbs news obtained this permit permissi to have hisas, but the told us it's relatedo a documentary. he thinks there's no mystery to this history. >> i think he got gunned down. i think we're going to find that it's him laying under two tons of concrete at crown hill cemetery. spoiler alert for everybody watching at home. >> reporter: dillinger's relatives filed an affidavit with indiana officials qutioning whher the gangster is actually buried in tt grave. and the history channel is looking into it. but while that's interesting, the fbi says there is no doubt it's john dillinger. dean reynolds, cbs news, chicago. >> and that's the overnight news for this thursday. for some of you, the news continues. for others, check back later for the morning news. and, of course, "cbs this morning." from the broadcast center in new york city, i'm omar villafranca.

captioning funded by cbs it's thursday, august 8th, 2019. this is the "cbs morning news." first funerals. some of the first victims will be laid to rest. the day after president trump visited grieving communities in dayton and el paso. a crime spree of robbeies and stabbings have left some dead in southern california. severe weather strikes several states. and real-life hero