Native Americans with Hebrew Ancestry, Horses, Elephants and Steel Swords in the Book of Mormon

Is there any scientific evidence for horses, elephants and steel swords in the New World before Columbus, as mentioned in The Book of Mormon?  Is there any scientific evidence for Native Americans with Hebrew ancestry, as described in The Book of Mormon? In this episode of Religion Today, host Martin Tanner explains why the answer is a resounding yes. The cutting edge scientific sources Martin cites are a Science magazine article on Native American DNA, archaeology authorized by the government of Israel, archaeology in Mesoamerica and North America coupled with carbon 14 testing. 

Issues of faith and spirituality that matter to LDS, Mormons, The Church of Jesus Christ of Latter-Day Saints