WASHINGTON/CAIRO: Israel is seeking changes to a plan for a Gaza truce and the release of hostages by Hamas, complicating a final deal to halt nine months of combat that have devastated the enclave, according to a Western official and a Palestinian and two Egyptian sources. Israel says that displaced Palestinians should be screened as they return to the enclave’s north when the ceasefire begins, retreating from an agreement to allow civilians who fled south to freely return home, the four sources told Reuters.