This doesn't prove GM corn is more dangerous for monarchs than conventional spraying, which is probably much worse. Officials at Britain's Ministry of Agriculture agree. Bt, derived from a soil bacterium, is a natural pesticide used for years by conventional and organic farmers. More research needs to be done before a decision can be reached on this study for the agricultural environment. Even the monarch study authors warned against drawing conclusions about the risk.
Some groups actually destroy test crops.
Often rigged out in white biohazard suits, they invade farms and cut down swaths of experimental corn or soybeans. Media photographers and cameramen are frequently alerted in advance. Last January the pressure led to a new protocol being signed in Montreal by 130 nations. It allows countries to ban GM food imports if they feel there is insufficient evidence that they are safe. Currently, no GM fresh fruits or vegetables are available for human consumption in Europe.