Genectically Modified Organisms, Science or Playing God?

A genetically modified organism or genetically engineered organism is an organism whose genetic material has been altered using genetic engineering techniques. These techniques, generally known as recombinant DNA technology, use DNA molecules from different sources, which are combined into one molecule to create a new set of genes. This DNA is then transferred into an organism, giving it modified or novel genes. Transgenic organisms, a subset of GMOs, are organisms which have inserted DNA that originated in a different species.

Do you agree with genetically modifying/genetically engineering organisms/animals? How is it possibly harmful/helpful to modern science? What might be some of the benefits or dangers of this practice?