ali rogin tells us how trick or treat for unicef began, and how it's changed.s one of the most recognizable fundraisers in the country. >> my oldest and most significant memory is trick or treating for unicef with all of my brothers and sisters. reporter: and a mainstay of halloween for generations of americans. >> when your doorbell rings and you hear "trick or treat for unicef" won't you help the children help the children? reporter: public figures from first ladies to the bewitched and brady bunch casts to singer sammy davis junior and supermodel heidi klum have taken up the cause. the little orange boxes were many children's first encounter with giving back. unicef usa president and ceo michael nyenhuis was one of them. >> i was a boy growing up in owatonna, minnesota, and i had my little cardboard box and went door to door and it awakened in me something that said, hey, you know, there's a bigger world out there and i can do something about it. reporter: it all began around 1950 when a philadelphia school teacher and her husband, a presbyterian minister, g

ali rogin spoke with vonda felbab-brown of the brookings institution. elbab-brown, thank you so much for joining us. tell us about how chinese entities are working with mexican drug cartels to produce and distribute fentanyl. vonda: well, thank you for having me. china is the principal source of precursor chemicals from which mexican cartels synthesize fentanyl. so various chinese brokers, individuals, sometimes larger family based networks and companies produce and sell these precursors to mexico, often very knowingly enabling the cartels in synthesizing fentanyl. they even provide recipes to the cartels, how to make fentanyl out of them. ali: the biden administration has made very clear that the actions that they've been taking over the past few months are part of a very deliberate effort to stop the global fentanyl trade. why is the u.s. stepping up these actions now? vonda: for well over a year, we had no meaningful cooperation from the government of china. and frankly, we have had minimal and inadequate cooperation from the government of mexico as w

ali rogin reports on the potential that medication holds for treating this disease and why it is underusedearly 30 million americans struggle with alcohoaddiction, and the problem has steadily gotten worse, accelerating since the pandemic began. yet less than 5% of people reported getting treatment of any kind. but drugs used to treat alcohol use disorder have been on the market for deces, and more are currently being studied. dr. sarah wakeman runs the substance use disorder initiative at massachusetts general hospital. brigham. thank you so much, dr. wakeman, for joining us. first of all, let's talk about how the medical community defines alcohol use disorder and what have the trend lines been ? has the problem gotten more prevalent since the pandemic began? dr. wakeman: the definition of alcohol use disorder is compulsively using alcohol despite problems. and so those can be problems in your life, like in your relationships or your ability to work or carry out your functions or in your health. so continuing to use alcohol despite known health, either mental or physical health problems t

on this final day of prostate cancer awareness month, ali rogin takes a look at screening, diagnosis of the disease and what it means to live with it. ali: prostate cancer is the most common cancer among men in the u.s. and t second most common cause of cancer-related deaths. and, glaring racial disparities exist with the disease: 1 in 8 men will be diagnosed with prostate cancer during their lifetime, but that rate increases to 1 in 6 for african american men. but, a diagnosis doesn't have to be life-changing. in fact, many men with certain types of slow-growing prostate cancer are able to forego surgery and treatment altogether. dr. charles ryan is a genitourinary oncologist, and he heads the prostate cancer foundation. dr. ryan, thank you so much for joining us. let's start with the absolute basics. what is prostate cancer and where does it originate in the body? dr. ryan: sure. well, thank you for having me on to explain this important issue. the prostate is a gland that is very important in male reproduction. it essentially produces the fluid that allows the sperm to fertilize an