France scrambles to handle GM crop controversy PARIS, Aug 27 (Reuters) - France's left-wing government struggled on Monday to counter high-profile protests against genetically modified crops without alienating a wider movement of activists concerned about globalisation. Reacting to the destruction of a test site for genetically modified maize on Sunday, the country's health and research ministers urged protesters to leave the experimental crops in place because they were needed for medical research. Confederation Paysanne, the farmers' union led by anti-globalisation activist Jose Bove, uprooted two experimental maize fields on Sunday as part of a growing campaign against bio-engineered plants. The protest came as another anti-globalisation group, Attac, stepped up pressure on the government to adopt a tax on global foreign exchange transactions to reduce Third World debt, a step Finance Minister Laurent Fabius has rejected as impractical. "We have to have a discussion, but we can't accept reactions that are against progress," said Health Minister Bernard Kouchner, adding the protests seemed motivated by fears that he did not understand about science. "It is not acceptable when someone destroys a field aimed at a treatment for cystic fibrosis," he told Europe 1 radio. Research Minister Roger-Gerard Schwartzenberg deplored the destruction of GM crop experiments as a step backwards in the quest for more information. "There are perhaps possible risks for health and the environment, but this is exactly what these tests are trying to verify," Schwartzenberg said in a television interview. Dealing with the anti-globalisation movement has become a key issue for Socialist Prime Minister Lionel Jospin, who needs to rally support among the many currents of the French left if he is to beat President Jacques Chirac in elections next year. His Greens party coalition partners complicated the task when their leader, Dominique Voynet, sided with the protesters. "I understand them. (Their actions are) undoubtedly resulting from the ambiguous attitude of the government," said Voynet, who stepped down as environment minister in July to lead the Greens through presidential and legislative polls in 2002. Her successor at the Environment Ministry, fellow Green Yves Cochet, last week described the campaigners' actions as illegal but said they raised a legitimate issue that had to be debated. The daily Le Monde said the anti-globalisation issue challenged Jospin with a "curious cocktail" of problems at a time when other headaches such as slowing economic growth have appeared to darken the political horizon. The campaign to destroy GM crops sprang up earlier this year when the Agriculture Ministry published a list of 100 districts where genetically engineered plant trials were being conducted. Sunday's protest marked the fifth time that French protest groups have destroyed GM crops since late June.