College rankings (January 2 )
European unrest (January 9)
Global population growth (January 16)
Robotic warfare ( January 23)
Central American gangs (January 30)
Political polling (February 6)
Emerging infectious diseases (February 13)
Gentrification (February 20)
Patent controversies (February 27)
Presidential power (March 6)
Prisoners and mental illness (March 13)
Teaching critical thinking (April 10)
Native American youths ((April 24)
Community colleges ((May 1)
Free speech on campus (May 8)
Intelligence reform (May 29)
Pesticide controversies (June 5)
Restoring ties with Cuba (June 12)
Manipulating the human genome (June 19)
Millenial generation (June 26)
Terrorism in Africa (July 10)
Fighting urban poverty (July 17)
Treating Alzheimer's disease (July 24)
European migration crisis (July 31)
Unions at a crossroads (August 7)
Doctor shortage (August 28)
NFL controversies (September 4)
Reforming juvenile justice (September 11)
Far-right extremism (September 18)
Robotics and the economy (September 25)
Fighting gangs (October 9)
Marijuana industry (October 16)
Immigrant detention (October 23)
Dietary supplements (October 30)
Housing discrimination (November 6)
Air pollution and climate change (November 13)
Greek life on campus (November 20)
Privacy and the Internet (December 4)
Transgender rights (December 11).
