for more, we're joined by journalist safa al ahmad.her latest documentary appears tonight on pbs stations across the united states. in the film, safa was granted extremely rare access to the houthis as they advanced in yemen. welcome to democracy now! can you talk about the fight for yemen and this access you had, who the houthis are, how you followed them in yemen? >> i have been very curious about the houthis for years, especially i've been going to yemen for a few years and i have always wanted to get access to the houthis. finally, when i heard last september that this surrounded the capital sanaa, i thought things would escalate if they took over the city. they're very interesting because they are very young group. they keep morphing their understanding of who they are and what they want as they progress. it was very hard to pin it down to one thing. but if i must describe the houthis in one line, it would be the revivalist with strong and type your list agenda. -- anti-imperialist agenda. they have a words that describe who they

and now the houthis, with their hostile message to america and its allies: >> narrator: journalist safa al ahmad spent months reporting from the middle of the conflict. >> narrator: she negotiated rare access to the houthi rebels as they advanced. >> narrator: and she traveled into the heartland of al qaeda to meet the houthis' bitter rivals. >> narrator: from inside yemen the story of how the houthi rebels ignited a battle that has turned an american ally into a warzone of anti-american militants. >> narrator: with a saudi led coalition trying to break the houthis hold... (explosion) frontline investigates "the fight for yemen." >> frontline is made possible by contributions to your pbs station from viewers like you. thank you. and by the corporation for public broadcasting. major support fo frontline is provided by the john d. and catherine t. macarthur foundation, committed to building a more just, verdant and peaceful world. more information is available at macfound.org. additional support is provided by the park foundation dedicated to heightening public awareness of critical issue

and then there is al qaeda. >> ifill: i spoke to journalist safa al ahmad a short time ago. thank you for joining us. you spent some time on the border, as we just saw, going places most people don't get to go in yemen and talking to people most people don't get to talk. to what is the attitude on the ground? what is the sense of this irrevocable slide we're seeing in yemen? >> yeah, when i was there i could see the beginning of that schism within the yemeni society between those who are pro and anti-houthis. they're suffering through a lot of corrupt political. a lot of people followed the houthis thinking there would be an honest government but that wasn't true. the victims, the houthis, for over a decade now have been the victimizer. >> ifill: you were there before the saudis started their air strikes that began 13 days ago. tell us about what the houthis, how they came to be where they came to be now, as you describe? >> in the beginning it was an ideology. houthi was the founder of the movement. this is where the movement came from. he started off as a revivalist which

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