This would not only home a longer charge than the standard lithium ion battery, the materials are easy to get. iron and air are not hard to come by. the west is waking up to this problem. they allocated several billion dollars to the production and recycling of criminal minerals in the u.s. it also moved to cut tape from mining on federal land. recently president biden revoked the defense production act to unlock more funds for mineral projects, those his regulators have also stood in the way of some mines. this will have to remain a priority for years and years to come, for the sake of the planet and international security, we will need to dig deep, quite literally. thanks to all of you for being part of my program this week. i will see you next week. don t forget, if you miss a show, go to cnn.com/fareed for a link to my itunes podcast.