The Palestinian keffiyeh has been at the center of violent attacks in the U.S. NPR's Ailsa Chang speaks with dress historian Wafa Ghnaim about the keffiyeh's legacy and significance for Palestinians.

For a younger generation, the once-powerful protest symbol packs about as much of a punch as a smiley face. Once the powerful logo of nuclear disarmament, the peace sign became so overused it lost its ...