text:  Israel says food deliveries into southern Gaza are now piling up for days or even weeks on the Gaza side of the border. Aid groups counter by saying Israeli military operations and other barriers are preventing the timely delivery of this assistance. NPR's Greg Myrie has the latest. Israel's military says around 200 trucks a day take food into southern Gaza at the Karim Shalom border crossing. Israeli Colonel Elad Gorin says even more could be sent.