Hamas and Israel trade blame over deal violations. Will the fragile ceasefire and hostage agreement hold?

The fragility of the truce between Israel and Hamas was laid bare on Saturday, after Israel accused Hamas of withholding a hostage, prompting a halt in the movement of Gazan civilians back to their homes in the north.

​ The fragility of the truce between Israel and Hamas was laid bare on Saturday, after Israel accused Hamas of withholding a hostage, prompting a halt in the movement of Gazan civilians back to their homes in the north. Read More Breaking News, Latest News and Videos | CNN