NPR News Now covers how a dangerous heat wave is disrupting Fourth of July celebrations and prompting safety warnings across the US. The episode reports that a one-year ban on Medicaid reimbursements for abortion providers has expired, while Egypt’s World Cup victory sparks widespread joy in the Middle East. Additional stories include a fatal boat capsizing in Wisconsin, FDA approval of gene therapy for younger children with sickle cell disease, and preliminary findings from a Missouri skydiving crash.