in the u u.s., an opioid epidec is sweeping the country.illionsns are addicted to h hn and prescription painkillers, but help for addicts is hard to come by. first we go to mexico, where one state is trying to tackle corruption with a female-only traffic unit. more than six billion people live in a country with a serious corruption problem. this costs developing nations an estimated $1 trillion u.s. per year. but the global fight against corruption is gathering pace. in russia, young people haveve been takaking to the s streets. in south korea, public demonstrations helped topple the president, who's now standing trial on graft charges. there's also growing unrest in morocco, where thousands have been protesting government corruption and abuse of power. for months now, people in brazil have been demonstrating in support of a police probe into high-level embezzlement and bribery. in mexico, meanwhile, corruption is part and parcel of everyday life. reporter: it's 6:30 in the morning and time for the boss to be picked up. 400 traffic police o

in the u u.s., an opioid epidec is sweeping the country.illionsns are addicted to h hn and prescription painkillers, but help for addicts is hard to come by. first we go to mexico, where one state is trying to tackle corruption with a female-only traffic unit. more than six billion people live in a country with a serious

in the u u.s., an opioid epidec is sweeping the country.onsns are addicted to h hn and prescription painkillers, but help for addicts is hard to come by. first we go to mexico, where one state is trying to tackle corruption with a female-only traffic unit. more than six billion people live in a country with a serious