Why should Israel not release this information now? The information is not knew- it's release is a reaction to Egypt's accusation. Egypt has no right to complain that it's sodleirs were killed during a war (while retreating) while they themselves murdered israeli soldiers who had already surrendered. What's the problem?
Army: Blast in Korean DMZ wounds two South Korean soldiers (Reuters)
from the article: TV documentary: Egyptians killed captured IDF troops in 1973 war