. >> reporter: russell bennett is responsible for keeping roads open in southeast colorado's crowley county. after over a decade of drought, his enemy is the tumbleweed. >> everybody sold their cows off and no cows ate the small weeds and we got rain at the right time and weeds shot up and there you have it. the perfect storm of tumbleweeds. >> reporter: he fights this skourj with the custom-built machine he calls puff the magic dragon. it annihilates tumbleweeds and spits them out in a fine dust. despite months of work, they still clog the roads. they start out soft and green like this russian thistle. after a while it dries out and grows into this monitor. each mother plant has 250,000 seedpods, and that's a lot of tumbleweeds. this past of colorado includes oklahoma, new mexico and texas are experiencing the worst drought since the 1930s. normal rainfall is 14 inches a year. last year there were only 3. the dust bowl has returned. >> you cannot find any three and a half year period this dry in the history of this area with data going back to the 1880s. >> reporter: this is a quiet

you always think it will be better next year >> back on county road k, russell bennett, the guy they call puff daddy is in a never-ending battle with the tumble we'd. he knows without rain, it's just a matter of time before the wind kicks them up and sends them his way. carol mckinley, al jazeera near ordway, colorado >> there is much more ahead here on al jazeera america including a museum that is a very rare tribute to the fight for democracy in china. plus what we began as an honor to shakespeare has become a nuisan nuisance, the bard's birds keep multiplying beyond control. mera >> all 15 crew members navigating the sunken south korean ferry are in custody, accused of negligence and failing to help boat passenger. they said they smashed wind odes to try to get out passengers. the agency says they were accused of negligence. 187 bodies have been recovered. 115 remain missing. a new museum has opened in hong kong. it remembers the massacre of protesters in china's tiananmen square 25 years ago. some people say that museum is one-sided. they want it all in the past. dibia gubanman h

back on county road krus -- russell bennett is in a never-ending battle with the tumble weed. >>> ando can the connastogas be far behind. i'm del walters in new york. you can check us out 24 hours a day by going to aljazeera.com, where the news continues seven days a week 24 hours aday. >> president obama's returning home to the u.s. to find the lowest approval ratings of his years at the white house. in foreign affairs the president has defended his approach as one that protects american interests and american friends in a multi polar world. is there an obama doctrine? it's the inside story.