7/27: Despite truce proposals, war in Gaza rages on; Reporter's notebook: Lessons little kids shouldn't have to learn

      |Hamas rocket launchers roared to life minutes after a humanitarian truce expired. Israel says it proposed another brief cease-fire of 24 hours, which Hamas rejected, only to propose its own hours later; and, after an attack, the first thing you notice is the children, who often don't know when to duck or where to run. From Gaza, CBS News' Barry Petersen reflects on a week of fighting between Israel and Hamas.

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