Air travel issues to persist well into Sunday, officials say, with thousands of flights affected

In brief

Air travel issues to persist well into Sunday, officials say, with thousands of flights affected ReutersCopper wire upgrade caused nationwide flight chaos, US transport secretary says BBCFAA lifts nationwide ground stop that disrupted thousands of flights; White House says no indication of "nefarious act" CBS NewsNationwide flight delays and cancellations continue after FAA lifts ground stop AP NewsTop nine most…