Top Leading Issues Top Leading Issues en Copyright 2014 ProQuest LLC. All rights reserved. 10/25/2014 10/25/2014 SIRS 90 46 Knowledge Source Abortion &title=Abortion Abortion 0000000037 Marijuana, Law and legislation &title=Marijuana, Law and legislation Marijuana, Law and legislation 0000015900 Cellular telephones &title=Cellular telephones Cellular telephones 0000004158 Gun control &title=Gun control Gun control 0000011611 Zoos &title=Zoos Zoos 0000029268 Animal welfare &title=Animal welfare Animal welfare 0000001287 Abortion, Moral and ethical aspects &title=Abortion, Moral and ethical aspects Abortion, Moral and ethical aspects 0000000057 Same-sex marriage &title=Same-sex marriage Same-sex marriage 0000010818 Capital punishment &title=Capital punishment Capital punishment 0000003876 Attention-deficit hyperactivity disorder &title=Attention-deficit hyperactivity disorder Attention-deficit hyperactivity disorder 0000002040