In a sense, humans have been genetically engineering for centuries. The selective breeding that has produced domestic cattle, pigs and dogs is a form of genetic engineering. Likewise, most of our crops have been selectively bred, and bear little resemblance to their wild counterparts.
I read "Day of the Triffids" some years ago - this has made me frightened of genetic engineering
I do not understand why we need genetic engineering. In the 80s/90s, we had the infamous "grain mountain" (and oil and wine lakes) of surplus produce in the EU. Cuba is self sufficient and organic: read
here
Genetic engineering in countries that can will not save lives in countries suffering famine (where war, social ignorance and goverment corruption are often contributing to the situation).