. >>> dave england of california has two children. 10-year-old ruby and 7-year-old rowan who has been since dave can remember. >> your classic siblings, always bickering over something and always up to some little mischief and they're good kids, though. >> if you think dave's face may look familiar -- he's one of the guys on the jack ass movie franchise. >> what we do on jack ass isn't for little kids. having two little kids i don't let them watch it in their entirety. but the editor put together little clips that are safe enough for them to see. >> one clip grabs the kids' attention and never lets go. >> you stoked? >> this one stunt where they pull aaron's tooth out with like a hot rod or something and i thought it would be real funny if we did a motorcycle video. >> and as fate has it, rowan happens to be at an age where loose teeth are in abundance. >> when his front tooth became loose ruby wanted to do it, i pulled it out with a string and imagined what that would be like to be pulled out by a motorcycle, it didn't seem that bad. came out pretty easily and gets the motion going i

and have and really liked the experience of travel so i would like rowan to have the option. to do anything he why i like won't have the option to do anything he wants so if he wants a career that is someplace else if you want to travel to other countries who are live in other countries i would like him to be i feel that he is competent and capable enough to do that. twenty two to fifty words and three three so and then eighty four out of the if. one of the things i know how to do is how to build the. answer i want to make sure the row knows how to build things to. and so he's. even when he was. seventy years old he was using a drill in a song. which . i'm just trying to figure out what to do my hair. is a little thicker. and a really reverberated here yes i am. you know our. back and. really. happy new year that. they are are you doing anything happy tony's whole yes i give you a big hug and clearly that's. nothing. new talking to my much like you know my dad works and stay and i actually do have a mike now sukey in. it's still great to talk to you could sleep like this can

rowan has been mocking something up, and you may have been provided with some materials that describe what he is trying to do with that. it is easier to try to turn the microphone over to him, our media services manager. >> thank you, supervisors. one of the challenges obviously is to try to meet the entire language of the ordinance, and to be able to translate into multiple languages. in the efforts to try to do that completely, we have looked into some technological options, and i just want to walk you through where we are in the planning stages. what we have come up with is something that we have not seen anywhere else in looking around at digital signage around the country and around the world. in order to move forward, there are obviously other steps we have to do, including programming. i want to run you through it because it is something that might be able to work in many other locations as well. essentially, at city hall, we have some issues because of the landmark status of the building, a running conflict, and other uses in the building and he is very difficult. so what we a

andrew rowan is chief scientific officer for the humane society. >> yes, they are suffering. and then the other thing about it is the biopsies are not benign. i mean, the chimps that were retired out of this one lab in new york, they died at 35. they can live to be 55, 60 years of age. >> reporter: but does the end ever justify the means? scientists are using chimpanzees to try and stem a raging epidemic of hepatitis "c." fully 3% of the world's population-- approaching 200 million people-- carry the hep-c virus. the drugs used to treat it are not always effective and carry horrible side effects and there is no vaccine. >> arthur, nice to see you. >> hey, you dr. schiff! good to see you. >> reporter: arthur, who asked us not to use his last name, believes he contracted hepatitis "c" during his days as a paramedic. he now has chronic liver disease and has suffered fatigue, nausea, irritability and depression from multiple drug treatments. >> it's an insidious disease. and it's one that multiplies and grows. me for example, having a very mild case of inflammation of the liver a

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