A Maryland mother was arrested Monday after she poisoned her young sons with eye drops, police in Pennsylvania said. State police in Gettysburg announced they had arrested 23-year-old Samantha Unger, of Thurmont. She allegedly told state police in Gettysburg that she put drops of Visine into water and juice for her 3-year-old and that her 1-year-old became sick by drinking them accidentally. Unger faces charges of aggravated assault and endangering the welfare of children. A police affidavit says both children became sick this spring, and the older boy required hospitalization. Doctors at Hershey Medical Center suspected poisoning, and tests found...