JUDY WOODRUFF:

The battle between Israel and Hamas headed into the weekend today with no sign of a slowdown, as the Palestinian death toll topped 100. The two sides again traded heavy airstrikes and rocket fire, with the Israelis vowing to press their offensive, and Hamas insisting it wouldn't give in.

The early morning light showed chaos in Gaza after another Israeli airstrike. They were hitting roughly every five minutes today. Later in the day, streets in Gaza City were mostly empty. Shops were locked up and people stayed inside to keep safe.