text:  For SRN News, I'm Keith Peters reporting. A USAID official says thousands of tons of food, medicines, and other aid piled up on a Gaza beach isn't reaching those in need because of a dire security situation on the ground. He says truck drivers are either getting caught in the crossfire or have their cargo seized by gang-like troops. Doug Stropes, who's with USAID, says Gaza continues to be an active combat zone that also has a general sense of lawlessness.