Since 2013, protests opposing police violence against Black people have occurred across a number of American cities under the banner of “Black Lives Matter.” We develop a new dataset of Black Lives Matter protests that took place in 2014–2015 and explore the contexts in which they emerged. We find that Black Lives Matter protests are more likely to occur in localities where more Black people have previously been killed by police. We discuss the implications of our findings in light of the literature on the development of social movements and recent scholarship on the carceral state’s impact on political engagement.

This file contains all of the data and code to replicate the figures and tables in "Battlefield Casualties and Ballot Box Defeat: Did the Bush-Obama Wars Cost Clinton the White House?"

This dataset lists all individuals who have been charged with or died engaging in jihadist terrorism or related activities inside the United States, and Americans accused of such activity abroad. Years indicate the year that individuals were charged or – if they weren't charged – the year that they died.

It also details the perpetrators' citizenship status – a data point that is particularly timely given Saturday's Presidential Executive Order by Donald J. Trump banning refugees from entering the U.S. from seven (7) different predominantly Muslim countries.