From a New York Times news analysis by Roger Cohen headlined “A Shaken Israel Is Forced Back to Its Eternal Dilemma”:

The most sweeping invasion of Israeli territory in decades, conducted by a Hamas force that had been widely seen as a ragtag collection of militants, has delivered a psychological shock to Israel so great that its very foundations are being questioned: its army, its intelligence services, its government and its capacity to control the millions of Palestinians in its midst.