Biden calls for reinstating assault weapons ban, buyback program

Former vice president Joe Biden, the frontrunner for the 2020 Democratic presidential nomination, called on Monday for reinstating a ban on assault weapons and including a buyback program to get them off the streets.In a column in The New York Times, Biden also called for stricter background checks for gun buyers and greater use of "smart-gun technology" that allows a weapon only to be fired by its authorized owner."We have a huge problem with guns," Biden said in the article published about a w