US Transport Secretary asks Congress for $30 bn to upgrade aviation infrastructure

A failure in aging telecommunications equipment Friday forced a nationwide halt to departures from US airports. Homeland Security Secretary Markwayne Mullin says officials have found no evidence so far of a cyberattack, but that they're not ruling it out. Details by Jack Pownall.

A failure in aging telecommunications equipment Friday forced a nationwide halt to departures from US airports. Homeland Security Secretary Markwayne Mullin says officials have found no evidence so far of a cyberattack, but that they're not ruling it out. Details by Jack Pownall.