This photograph was taken on August 28, 1963, during the March on Washington for Jobs and Freedom. The march was organized by leaders of civil rights organizations, including leaders of the NAACP, the Congress of Racial Equality, and the Student Nonviolent Coordinating Committee, as well as Martin Luther King Jr., president of the Southern Christian Leadership Conference. Historians estimate that about 250,000 people participated in the event. Of these, about three-fourths were African American and one-fourth were white. Most of the marchers carried premade signs provided by the organizers.

Aresearcher conducting behavioral research collects individually identifiable sensitive information about illicit drug use and other illegal behaviors by surveying college students. the data are stored on a laptop computer without encryption, and the laptop computer is stolen from the researcher’s car on the way home from work. this is an unanticipated problem that must be reported because the incident was (a) unexpected (i.e., the researchers did not anticipate the theft); (b) related to participation in the research; and (c) placed the subjects at a greater risk of psychological and social harm from the breach in confidentiality of the study data than was previously known or recognized. according to ohrp, this unanticipated problem must be reported to the irb in which timeframe? promptlywithin 48 hourswithin 24 hourswithin two weeks