Background checks for gun sales, concealed-carry permits, and security spiked in August as congressional Democrats renewed their push for expanded gun control in the wake of several mass shootings.The National Instant Criminal Background Check System recorded a 15.5 percent uptick in background checks last month, according to the National Shooting Sports Foundation.The jump in gun sales appears to have been spurred by a desire to secure self-protection amid an epidemic of mass shootings in the U.S., before Congress potentially approves stricter gun-control measures such as an assault-weapons ban, universal background checks, or limits on ammunition.The NSSF also pointed out that some states saw a particularly steep jump in background checks last month, with Alabama's NSSF-adjusted number jumping over 100 percent from August of last year, and Minnesota's number increasing 68.9 percent.Gun sales also spiked in August of last year, just before the midterm congressional elections,
