U.N. Secretary General Ban Ki-Moon, Secretary of State John Kerry and the foreign ministers of Great Britain and France all are rushing to achieve a cease-fire between Israel and Hamas. Their motive — to end civilian suffering and restore stability to the area — is noble. The images of the wounded and dead resulting from the conflict are indeed agonizing. However, these senior statesmen can be most helpful now by doing nothing. To preserve the values they cherish and to send an unequivocal message to terrorist organizations and their state sponsors everywhere, Israel must be permitted to crush Hamas in the Gaza Strip.