The conflation of faith as "unevidenced belief" with faith as "justified confidence" is simply a word trick used to buttress religion. In fact, you'll never hear a scientist saying, "I have faith in evolution" or "I have faith in electrons." Not only is such language alien to us, but we know full well how those words can be misused in the name of religion.
MORE: http://www.slate.com/articles/health_and_science/science/2013/11/faith_in_science_and_religion_truth_authority_and_the_orderliness_of_nature.html?wpisrc=burger_bar
