john holman, al jazeera. >> protesters in the yemeni capital ever sanaa. over the murder kidnapping of two woman. >>> meanwhile, in southern yemen, president hadi, have control over the groups, known as popular committee. mohamed vall has met some of the field commanders. >> these are the men in charge of law and order in southern yemen. patrolling the city fors but now they have replaced all regular security personnel. >> i think popular committees have become a key factor of security and stability. they were able to deviet terrorists more effectively than entire communities and governments. >> reporter: the popular communities now guard the airports and all public institutions. >> translator: we welcome the committees among us because they are very useful. we had a lot of weaknesses and they helped us tremendously especially in matters of crime and weapons. >> reporter: president hadi, they are said to have shown feacht efficiency and that'sefficiency. >> later on in abian and some northern province he. we can't let the same thing happen in aden. >> repo

john holman has more from san quinten in mexico's ba har california. >> reporter: these are some of the thousands of farm workers on strike in the family of san quintin in the northern date of baja california. this region and the huge forms export millions of -- farms export millions of tonnes of fruit for the u.s. these are the workers and they say their salaries have not risen in years, and they work in miserable conditions. all the prices have gone up. we get $7 a day. the producers sell the products we are earn in pesos, that's why we are protesting we want a rise in wages. >> sometimes the supervisors moll eff the women. if the -- molest the women. if they say no they fire her. >> not all are on strike. some are working in the field. workers argue that it's impossible to earn a decent living. without the workers picking the crops, those lost and valuable profits with them. it's in the interests not just of the farm workers, but producers to bring this dispute to a close sooner rather than later. >> u.s. troop withdrawal will dominate stalks between the president of afghanistan and

john holman, mexico. >> from mexico to florida's famous golden beaches.'re under threat were rising sea levels. they've been trying to address the issue of climate change. it's more difficult than you might think in the u.s. sunshine state. let's hear from jonathan betz. >> from south florida shores, christina has watched the seas change on the surface the oceans are rising. and beneath nature is dying. >> i cannot believe that everything is gone. >> you're surprised. >> yes absolutely. >> warmer water is killing florida's coral reefs. where color and life once bloomed, now gray emptiness exists. yet she said in florida state government the words climate change are not to be spoken. >> they said to you point blank do not use these terms. >> yes, that was said, that they were not to use those terms in any setting. ultimately what it came down to, we're the government's agency, and we're portray the message that the government wants us to portray. >> working to protect florida's waterways. >> they said if you know what's good for you, you will not use the t

john holejohn holman, al jazeera mexico. >> the case of 43 missing students, the families of the missing students have asked the authorities to continue with their search. they say there is no certainty of what happened to the students last september. they asked for the case to be considered a crime against humanity instead of kidnapping and homicide. >>> two months after the body of argentinian investigator alberto nisman was found while the investigation into his death continues, another investigation into whether the case against president cristina kirchner should proceed? >> investigating how alberto nisman died. was he murdered? did he kill himself? was he forced to commit suicide? >> the legal case is not just about the scientific evidence but about the will to fine the truth, and to take the decision to do that no matter what the consequences. >> across the city three judges are decide building to take that decision to overturn the verted of another judge who last month ruled that the case that alberto nisman was investigating should not proceed. the charge was that president chri