It sounds to me as though the IDF nneds to establish a buffer zone between Egypt and Hamas right at the border
and post out electronic hearing or esensing devices to determine if digging occurs in order to prevent additional tunnels being built.
We already know that the United Nations organization (UNRA) has been compromised, since many of the Hamas tunnels originate ore end within the UNRA buildings, with their consent.
Interesting that Hamas continues to be well fed and armed, while the general population is publicized as experiencing famine.