In "Senate Blocks Drive for Gun Control," Jonathan Weisman writes about the Senate's defeat of new gun control measures in the wake of December's mass shooting at Sandy Hook Elementary School in Newtown, Conn. WHAT was the bipartisan compromise that the Senate blocked on Wednesday? WHAT other gun control proposals did the Senate defeat? WHO shouted "Shame on you" from the Senate gallery? WHO is Gabrielle Giffords, and how did she become an advocate for some of the gun control measures that the Senate blocked? WHY did Senator Charles E. Grassley say he voted against the expansion of background checks for gun purchases? HOW did President Obama respond to the defeat of new gun control legislation? HOW did your Senators vote on the background check legislation? WHERE do you stand on the issues debated by the Senate on Wednesday? WHEN, if at all, do you think Congress will be able to pass legislation that will help prevent future mass shootings? Related: Our lesson plan "Watershed: Teaching About Gun Control After Newtown" and our Student Opinion question "How Should We Prevent Future Mass Shootings?"