In an article entitled "Odds Are That Your Pastor Is Keeping The Truth From You Instead Of Preaching It," which is about pastors being more concerned about building their churches than teaching their flocks, Pastor Chuck Baldwin makes some amazing statements and comes to the conclusion that these pastors are being deliberately disobedient. If you want to read the article, here's the link: http://www.westernjournalism.com/new-research-pastors-deliberately-keeping-floc
Another article referring to the Barna study ("Study Revealing Most American Pastors Silent on Current Issues Despite Biblical Beliefs") can be found here: http://christiannews.net/2014/08/12/study-reveals-most-american-pastors-silent-
. Most of the comments below the article are interesting, too.