Today, the American Red Cross Blood Mobile was set up in front of our Greenville studio on Arlington Boulevard until one Monday afternoon. The drive was one of several happening in the area over the next couple of days. All you have to do be a hero is donate. Red Cross officials say they collected 35 pints of blood Monday. Blood types O Positive and O Negative are in demand, although all blood is needed. Call you local Red Cross to find out where you can donate.