President Barack Obama intends to expand background checks on gun sales and target online firearm marketplaces like Armslist.com that have created a loophole for people prohibited from purchasing guns. US policy correspondent Barney Jopson explains. Then, as the Consumer Electronics Show wraps up in Las Vegas, correspondents Leslie Hook and Tim Bradshaw talk about the latest tech gadgets on display at the conference, including new developments in virtual reality and a smart phone-controlled running shoe. Finally, hosts Shannon Bond and Cardiff Garcia offer a few predictions for 2016. Music by: Blue Dot Sessions, Minden and Kevin MacLeod. Go to ft.com/alphachat for show notes.