united nations, more than ten people are injured or killed every day from land mines or other such explosivesesries are affected by land mines. the team believes that this invention has the capability to clear all the land mines in the world in as little as ten years. the correct answer to our gps challenge question is d, francis perkins, she was actually the first-ever female cabinet secretary. when she was once asked if she ever found her gender to be a handy cap, she quipped that it only bothered her in climbing trees. it would be a few years before the second female cabinet member was named. she was named secretary of the u.s. department of health, education and welfare. if you miss any show, check out our podcast at cnn.com/podcast. thanks to all of you for being part of my program this week, and i will see you next week. >>> hey, good morning, i'm brian stelter, and this is ""reliable sources."" our look at the story behind the story, of how news and pop culture get made. at this hour, is this cause and effect. donald trump is slipping in crucial swing state polls and he's attacking the m