Israel gears up for strike on Hamas amid fears of Gaza humanitarian crisis

Israel's military on Thursday ramped up its promised campaign of retaliation for last weekend's murderous rampage by the Palestinian militant group Hamas, leveling entire neighborhoods in the Gaza Strip, massing troops for a possible ground operation against the Hamas stronghold, and vowing that a punishing blockage of the densely populated Palestinian enclave would continue until the 100-plus Israeli and foreign hostages are freed.