Are scientific and technological developments considered good or evil?

Two questions below, one paragraph per question please.
1) Are scientific and technological developments considered good or evil? Please explain your answer. Just because we have the technology does that mean we should be using it? What restrictions or protections should be in place before using new technologies? What examples can you think of that are relatively new technologies with both good and evil consequences?
2)The Human Genome Project was completed early and has long been thought to be a great success. However, with the advent of DNA home kits, many are beginning to question what this all means. Are there any dangers in finding out what genes you may of may not have? Does having the gene translate to acquiring the disease or disability? Can the genes be turned on or off? If you get rid of a gene or turn it off, will it return in the next generation? If society believes messing with genetics is bad news (https://www.technologyreview.com/2015/03/05/249167/engineering-the-perfect-baby/), then what should be done as a group to counteract the unknown of advancements of science, technology, and/or medicine?