vicky nguyen investigates. and right now members of team usa are preparing to hit the pool, the sand, and the mats. we'll get to gymnastics in a moment, but we want to go straight to london and raj mathai who spoke to bay area native natalie coughlin for her coach's decision to bench her for what could have been her final olympic swim. >> reporter: good monday morning. when most of us retire, our careers come to an end in our 60s or 70s. but she turns 30 next month. she's unclear about her own future, but it appears team usa is moving on without her. for the last ten years, we've been following her around the world. she met with us during this bittersweet time. the foul london weather does not dampen the olympic spirit, nor the spirit of natalie coughlin. this was perhaps her final interview as an active olympian. she won her 12th career olympic medal, an american record for a woman, but nowhere to be found on the podium, because she was benched for the final race. the question remains, why would the coach sit

i'm vicky nguyen, nbc bay area news. >>> vicky will be back after the olympics with an investigationnto the chemicals and some of the accessories you touch every day, talking shoes, purses, wallets. what's lurking in the pigments of your favorite bag. tonight the investigative unit puts local products to the test and we'll show you which labels to look for and what they really mean. join us tonight after the olympics for vicky's report f. you have a story for the investigative unit call 888-996-8477 or send us an e-mail to theunit@nbcbayarea.com. >>> one of the biggest stars of team usa soccer used to defending her goal. she's on defense for going after a fellow soccer legend. learn what happened after solo stepped down with her coach. yu. cinnamon chex and honey nut chex are two of our favorites. when my husband found the chocolate one, we were in cereal heaven. the only problem is, with so many great flavors, you're making it very hard to choose. your fans, the mcgregor family. 'cause we love chex. ♪ [ male announcer ] and now try new gluten free apple cinnamon chex. back in '08, w

investigative reporter vicky nguyen has the details and more on the fda's investigation. >> reporter:entists just completed this extensive seven-page necropsy hoping they could find something definitive between the death of this dog and the treats she ate. it's part of an ongoing mystery that started almost as soon as these treats came onto the market. since 2007 more than 1,800 people have filed complaints with the fda, saying their dogs got sick or died after eating chicken jerky treats. >> reporter: rachel chambers of morgan hill says three of her four dogs became sick after eating milo's kitchen chicken jerky treats, made by del monte. >> he was very, very sick. she was sick for just a couple days with diarrhea. >> reporter: but it was shepherd mix callie who couldn't be saved. >> it was violent, and she did not deserve the way that she died. >> reporter: veterinarian jasper horik a-treated callie. he says he's seeing a trend. owners bringing in sick dogs after feeding them chicken jerky treats. >> even if they're causing vomiting and diarrhea, they're causing discomfort to the pe

nbc bay area's vicky nguyen investigates.