FILE - In this Jan. 8, 2013, file photo, Mormon missionaries walk through the halls at the Missionary Training Center in Provo, Utah. Mormon missionaries will soon spend less time knock

 

              FILE - In this Jan. 8, 2013, file photo, Mormon missionaries walk through the halls at the Missionary Training Center in Provo, Utah. Mormon missionaries will soon spend less time knock
FILE - In this Jan. 8, 2013, file photo, Mormon missionaries walk through the halls at the Missionary Training Center in Provo, Utah. Mormon missionaries will soon spend less time knocking on doors and more time chatting online with potential converts after leaders with The Church of Jesus Christ of Latter-day Saints announced Sunday, June 23, 2013 that it's critical to adapt to a changing world in which many people prefer to connect over social media. (AP Photo/Rick Bowmer, File)