Economist Bisakha Sen wants to study how US states' gun laws and gun cultures correlate with certain crimes and with firearms deaths in each state — and whether differing laws and cultures in neighboring states "spill over" to influence a state's statistics. But although President Barack Obama ordered the US Centers for Disease Control and Prevention (CDC) to recommence gun research in the wake of last December's massacre of 20 schoolchildren and 6 adults in Newtown,... (GunPolicy.org)