Landmines in Ukraine pose long-term threat; Dangerous fires spark in Colorado

As the war in Ukraine grinds on, there's new concern over the use of landmines put down by both Russian and Ukrainian forces. James Cowan, CEO of The HALO Trust, explains the risk they pose to civilians. And Colorado saw its most destructive wildfire over the winter. NPR's Kirk Siegler talks about new ignitions near densely populated areas this spring.