jody heymann, welcome to the "newshour". first of all, give us a sense of how much of the developed world already does offer some sort of paid leave for ca employees. >> nearly the entire world. not just high income but low and middle income countries offered paid leave. so 181 countries out of 192 offer paid sick leave, even more, 185 offer paid materty leave. about half as many paid leave for dads. it's overwhelmingly what countries do. >> woodruff: there's still a lot we don't know about what congress is discussing and certainly not what they're going to end up with, but the reporting is that what was in the original proposal, twelve weeks of paid family leave, they're looking at cutting that possibly to four weeks. how much difference would that make? >> going down to four weeks would be a huge loss. i think we just have to think about the circumstances. first, someone getting sick. if someone has cancer, they're not going to be treated and well four weeks later. if someone has a heart attack, being able to return to phy

jody heymann with the world policy analysis center, thank. >> thank you very much, judy. a senate committee is widening its investigation into the impact social media platforms have on children, teens and young adults, with more apps facing congressional scrutiny. william brangham has our coverage, beginning with this report. and a warning -- this story contains sensitive subject matter including discussion of suicide. >> i don't think parents are going to stand by while our kids and our democracy become collateral damage to a profit game. william on capitol hill, : executives from youtube, snapchat and tiktok were grilled by lawmakers on what these wildly popular platforms are doing to protect children online and exactly what kinds of material kids are able to access. >> kids as young as 9 have died doing viral challenges on tiktok. william today marks the first : time representatives from tiktok and snapchat have appeared before congress. among the many issues lawmakers asked about -- how to prevent dealers selling counterfeit pills and illegal substances to young peopl