1. A powerful storm rocked the upper Midwest Thursday, bringing serious damage from Wisconsin to Illinois as tornadoes sprang up overnight. The Mayville mayor has declared a state of emergency. In Chicago, fans attending Beyonce's Cowboy Carter concert at Soldier Field were evacuated, running for cover as storms pounded the area with water rushing downstairs.
2. It's being called a medical breakthrough: gene therapy, that allows doctors to correct errors in a DNA sequence, which could reverse life-threatening diseases and medical conditions. In Philadelphia, doctors successfully performed the therapy on a child who was diagnosed with a rare disorder called "CP-S1 Deficiency." Estimates show there are more than 7000 rare diseases affecting 30 million people in the US - a similar approach with technology like this could treat hundreds to thousands of genetic diseases like sickle cell, cystic fibrosis, Huntington's disease and muscular dystrophy.
3. The Chromebook Challenge. No one knows where, or how, it originated, but the latest social media trend is sparking concern among fire officials and school administrators across the country. Some students in Menomonee Falls have already damaged their devices. Other districts in Wisconsin are alerting parents to the challenge too.