A Feature expand in Facebook for sharing live videos

Facebook began testing the live video option Thursday among a sliver of its U.S. audience with iPhones. The Menlo Park, California, company didn't specify when everyone with a Facebook account and a smartphone will have an opportunity to broadcast live. The feature represents Facebook's latest challenge to online messaging service Twitter, which introduced a live video application called Periscope earlier this year. Another popular app called Meerkat also can be used to share live video in social circles.