Columnist Simon Tisdall at The Guardian thinks the Kerem Shalom attack was revenge for the Gaza beach tragedy:
In truth, the attack appears to have been belated, wrongheaded retaliation for the killing of nearly two dozen Palestinain civilians, including seven children, by Israel’s army in the past four weeks.
But this Ottawa Citizen staff-ed thinks otherwise:
In taking credit for the raid, the military wing justified it as revenge for recent Israeli attacks. Skeptics have noted that it takes time to dig a 640-metre tunnel and plan an attack.
UPDATE: The Times of London talked to tunnel diggers, reinforcing our skepticism.