Genetically Modified Seeds- Good or Evil?

Monsanto is a large corporation that manufactures genetically modified seeds for major crops in the US.  These seeds have been modified to prevent crops from being eaten by insects, resulting in a larger yield of crops for farmers.  There is a big debate as to whether these seeds will have detrimental effects in the future.  What do you think?

http://www.newfrontier.com/asheville/bad_seed.htm