5 things to know today, including the start of the NRA convention

Happy Friday, Houston! During Memorial Day weekend, the University of Texas MD Anderson Cancer Center is asking people to consider giving blood as many regular donors are busy with travel or other plans. The MD Anderson Blood Bank, located at 2555 Holly Hall Street in the Texas Medical Center, is open seven days a week, including on Memorial Day, and appointments can be made at mdandersonbloodbank.org. The school shooting in Uvalde this week also highlights the importance of always having blood…