Anne Barnard in Gaza: the tunnels

I have praised the reporting of Anne Barnard in Gaza despite my long record of criticisms of her work in Lebanon and Syria. She has indeed covered the human suffering in Gaza and tried to convey the pain of the population. But this article is quite problematic in parts of it.  Look at this: "an operation the military says aims to locate and destroy tunnels used by Hamas militants to enter Israel and carry out attacks".  When and where did Hamas use the tunnels to enter Israel and carry out attacks? The tunnels are being used to defend Gaza from Israeli terrorists who INVADED" Gaza (not to mention their invasion of historic Palestine).  So clearly they are being used to defend Gaza from Israeli terrorist attacks.