>> whitaker: ...chris fischer drills through the dorsal fin. he insists it's no more painful than piercing an ear. he's attaching the tag that really sets "ocearch" apart in the world of white shark tracking. >> fischer: this spot tag allows us to track this animal in real- time for up to five years. >> whitaker: the spot tag will send a signal to a satellite each time this shark's dorsal fin comes above the surface of the water. "ocearch" has put more than 50 of them on atlantic white sharks, and displays their tracks on its website. >> fischer: and that's how you learn not only where they are, but what they're doing, where they are, which is what you need to know to manage. right? where's the mating? where's the birthing? where's the foraging? where's the gestating? >> whitaker: while some scientists criticize the "ocearch" techniques as too invasive, they are gathering a lot of data. 17 different research projects will get samples and information from a single shark. >> doesn't take much to make everybody happy. >> whitaker: still, there are

schumer had a son last may with husband chris fischer, but she recently posted a visceral image of heragram writing, "i'm a week into ivf and feeling really run down and emotional." responses to her candid post pouring in from those who've been in her shoes. one woman writing, "ivf is the e hardest thing." others saying "so proud of you for sharing. so many silent sufferers." >> anytime there's a celebrity with a big platform and they step up to the plate with their personal health issue, it does an enormous amount to increase awareness. at times it can destigmatize an issue. >> reporter: schumer's post putting the spotlight on the often private and rarely discussed journey taken by so many couples desperate to conceive. >> it can be an incredibly lonely, isolating experience. and even though the reality is these women and these couples are not alone it can feel like they are. >> reporter: and it appears she'll continue to document her journey. she wrote this follow-up instagram post. "we're going to freeze embryos hopefully." and there was this one today. as only she can, schumer find

interesting to hear what else he has to save his evening thanks for the update alan fischer there in des moines. joining me now is chris garcia former u.s. commerce department official joins me now from washington d.c. good to have you with us and we serve. we certainly heard lots of cheers for the president in iowa and he touched upon the impeachment trial in washington d.c. where where you are in your opinion where does this. trial actually sit at the moment have the democrats managed to prove their case the republicans managed to rebuff the charges right so let's take a look at this maybe from 2 lenses thank you for having me on tonight the 1st lens of course is the actual substance in a 2nd lens would be the process let's take a look at the process i think that the house democrats have failed to prove their case namely firstly because it's been a completely partisan impeachment i think your viewers should know that this is the 1st time a president has been impeached strictly on party lines this is not been a bipartisan impeachment at all in fact we had one congressman congressman ben drew who was a democrat voted a