UK research institutions have little protection to ensure that experimental genetically engineered organisms are not escaping. For example, seeds can be blown by the wind over low fences or carried great distances very quickly by birds. It is not possible for anyone, any farm, or any country to isolate itself from the potentially disastrous effects of genetic manipulation. Despite their advantages, many new technologies produce disastrous side-effects. There is now a serious debate on the acceptability of some of these unpredicted side-effects, such as nuclear pollution, global warming, and the toxic effects of pesticides and herbicides.
Medicines often have to be withdrawn because the side-effects turn out to be too poisonous.
In each case, it takes time for the effects to come to light and be evaluated before action can be taken. Genetic engineering poses the greatest danger of any technology yet introduced. Safety testing will never be adequate, because organisms once introduced can never be recalled from the environment and their effects will spread without limit. If action is not taken now, virtually everyone in the world will soon be eating genetically engineered foods and will be at risk. Genetically engineered foods are being introduced without due regard for health, yet any damaging effects will be irreversible.