Demonstrators and students protesting the war in Vietnam are seen at the plaza in front of Columbia University's Low Memorial Library in New York on April 27, 1968.
PHOTO: AP/File
Demonstrators and students protesting the war in Vietnam are seen at the plaza in front of Columbia University's Low Memorial Library in New York on April 27, 1968.
PHOTO: AP/File
Oklahoma tornado's aftermath: How safe were schools in Moore?
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