Original sentence: Genetically modified foods may potentially offer consumers and farmers a crop with more desirable properties.In August 1998 widespread concern, especially in Europe, was sparked by remarks by a leading nutrition researcher (with 270 published scientific papers to his name, albeit not in the area of genetics), Dr Arpad Pusztai, regarding some of his research into the safety of GM food.Like all new technologies, they also pose some risks, both known and unknown.Pusztai claimed his experiments showed that rats fed on genetically modified potatoes had suffered serious damage to their immune systems and shown stunted growth.Technologies for genetically modifying foods offer dramatic promise for meeting some areas of greatest challenge for the 21st century.There is evidence of environmental and economic benefits for the crops already available
Edited sentence: In August 1998 widespread concern, especially in Europe, was sparked by remarks by a leading nutrition researcher (with 270 published scientific papers to his name), Dr Arpad Pusztai, regarding some of his research into the safety of GM food.It should be noted that the large majority of GM crops are created to tolerate more pesticides and herbicides like Roundup, which can then be sprayed on Canola fields for instance, without any affect to the "Roundup Ready Canola" but kill everything else.Pusztai's experiments showed that rats fed on genetically modified potatoes had suffered serious damage to their immune systems and shown stunted growth.There are risks, both known and unknown