. >> kosta grammatis. and lindsay moran. a former cia agent. that's our team. now let's do some science. ♪ ♪ >> hey guys, i'm phil torres. welcome to "techknow" i'm joined by are crystal dilworth and kosta grammatis. and linda moran. - lindsay moran. >> let's take a look at the safety of e-cigarettes in general. >>> they're fruity flavorful fun and more popular than ever. the explosion in advertising dollars and sales of strong cigarettes are in the billions as the devices are being touted as a safer alternative to smoking tobacco cigarettes. >> i think it's the best thing smoke. >> i wake up in the morning and my lurchtion hurt really bad. i started vaping and it started getting better and better. >> are the claims really true or are they a smoke screen? the health rirvetion associated with the use of electronic cigarettes associate with the liquids themselves. the research at u.c. riverside, indicates that we shouldn't be just concerned about the are liquids but the devices themselves. >> when you do your experiments in the lab you hope to find something and

shini somara with kosta grammatis and phil torres. now phil's got a really fascinating story, but it's also an adorable one. >> guys, i've never been jealous of a dog before until i met these dogs. they actually travel around the world saving endangered species and they also fight invasive species right here in the u.s. so let's go to montana and take a look. >> near polson montana biologist aimee hurt is using one of the most effective tools available to prevent an invasive species infiltration. her four legged, furry partner - wicket, is a conservation dog---trained to sniff out endangered species as well as invasive species. >> when did this idea of using dogs in conservation first get started? >> field biologists have taken their pet dogs out with them all the time when they are looking for something ... and dogs are like oh you're looking for this i can help you with this let me point it out...what conservation dogs do differently is that...maybe this month we're working on one thing and the next month we're working on something

happening today the contra kosta county fair kicks off in antioch.. a ribbon cutting ceremony kicks off the festivities at 11:45 today. >> a fundraising effort is under way to help the san francisco zoo. it's to build a food disspeser. it's built like a puzzle to encourage animals to forge for food. the zoo has raised $4700. we have a link to the crowd funding campaign on our website, abc7news.com. >> 5:47. new at 6:00 added protection for everyone who uses on demand ride services. the san francisco powerhouse is teaming up with your family in mind. >>> and stopping those annoying robo calls for good. can you imagine a decade after the do-not-call list find out what the fcc is doing. >> keep tabs on traffic and weather with abc news. this is the toll plaza and it's backed up. we'll check in a ♪ ♪ ♪ we live in a pick and choose world. choose, choose, choose. but at bedtime? ...why settle for this? enter sleep number... don't miss the memorial day special edition mattress with sleepiq technology. sleepiq tells you how well you slept and what adjustment

as we go inside politics joining us molly wall robert kosta, let's pick up on the fallout from the breakingrter one of the problems in ramadi and iraq more broadly, the iraqis are not showing the willingness to fight. he says that, at times there is a divide and a debate about whether president obama should be more aggressive about whether you need more u.s. troops oak. listen to john mccain, he pushed back for the surge if iraq. mccain's view now. >> we need to have a strategy. there is no strategy and anybody that says that there is i'd like to hear what it is. george w. bush had the guts to reverse and respond to the surge which we eventually then succeeded. i wish i pray that barak obama would do the same thing. >> any reasonable prospect of this president saying it is time to put more boots on the ground in iraq? >> we seen him tip toe further and further into this concept. he said that over and over again, that's the line that he won't cross. he told our publication last week he doesn't think we're losing. it's a difficult claim to make when the people who are supposed to be fighting