Both of my sources are from the very reliable website “CQ Researcher”. However, one of the sources is much better than the other. One of the articles was written one year ago and is ver relevant, while the other was written in 2001. Both concern my topic (manipulating the human genome), and both information is good; however, one is much more reliable based only on time. My other sources for this piece should be more recent than my article from 2001.