>> margolis: of course not.his implant is not supposed to change. >> pelley: the mesh is made of a plastic called polypropylene-- a common material in packaging. boston scientific had clearance from the f.d.a. to use a brand of polypropylene called "marlex," made in texas by a subsidiary of chevron phillips. but in 2004, chevron phillips became concerned about medical use of marlex. it issued a warning that it must not be used for "permanent implantation in the human body." duane priddy is a leading plastics engineer, and a fellow of the american chemical society. >> duane priddy: i can't, in my wildest imagination, imagine anybody that's knowledgeable in the science of plastics ever deciding that it was appropriate to use polypropylene in the human body. it's well known that it's oxidatively unstable. >> pelley: duane priddy has been a witness in mesh lawsuits, but he is not part of any litigation against boston scientific. he explained to us that oxygen breaks up polypropylene. the plastic has anti-oxidant add

with a free spirit for the last part of our series dream wedding we take a closer look at meghan margolis future relatives. meghan markle is becoming a member of the world's most eminent royal family the windsors. headed by queen elizabeth the second her official blessing was indispensable for her eats away at american. dance her majesty actually get on well with the american next actress actually the queen approved of macon from the outset and unlike her very much the fact that she was from a mixed race heritage the fact that she was a divorcee the fact that she was older than prince harry all of these things might have been deemed to be certainly unusual and possibly problematic but in fact the queen has been very well. for months now meghan this full court because. she has had to know how to conduct herself in the company of senior royals she's had to learn how to address the queen how to cut see who to curtsy to when it sees required that is a it's a bit of a minefield it's a huge thing for someone to have to take on fortunately she's had a wonderful mental in prince harry she was thr

and the bloom clearly the margolis to question the moral price we're paying into a suit of this policy. when i was there that shack was already treatment should. generate you would walk down why up enough hamas you know i don't i'm not the holy maple i was utterly prado sweets in a coffee cup because. i didn't yell at the shrine a child of a woman who's giving him coffee throws stones at the well is a palestinian families over there. the child should be arrested. val's it that's obvious it's over but his mother has given you coffee and fruit juice. to me but what would your arrest her child. that all show you're telling his stop. but he continues to throw up and. down like this to make a barrier between him and the palestinian homes. as the body doesn't stop. him from that's the reality of a soldier's life here in hebron. are saying objective is to enforce the law since we have govern a city but it's an impossible task but you. if. you're in my military service and especially after i started asking myself a lot of questions i might shut my deciding moment for me it was a trip to hebron