CHICAGO, United States (AFP) — A violinist accused United Airlines of rough treatment after she refused to check her fragile 18th century instrument as luggage, another potential black mark to the United States carrier after an infamous passenger dragging incident. Yennifer Correia was traveling Sunday from Houston, Texas to a music rehearsal in Columbia, Missouri, when ticket agents told her that she could not carry her circa late-1700s Italian violin onboard the plane, Correia’s attorney […]