at the construction site, martha kagiri puts on her other persona: braided hair, work clothes, and a firm, commanding voice. a woman boss is still a rarity here in kenya, but kagiri is undeterred. there are always problems that need solving. customers who are late with payments, or a wall that needs reinforcing. kagiri does it all -- including negotiating with local officials. >> you don't have to pay any bribes nowadays. before it was really really difficult. but for now, with this new government, it's been quite a step forward. >> martha kagiri grew up in this farm house. her mother still lives here. and of course, the farm house also uses biogas. six years ago, kagiri built her first biogas plant here. it supplies enough power for cooking -- and for light. twenty years ago, the farm had no gas or electricity. kagiri and her mother gathered firewood from the forest -- often back-breaking work. kagiri was the second-youngest of five children. even back then, she was unusual. >> she was very strong willed. she was small, tough, and liked playing with the boys. she wasn't much like the