Joanna Walters

Experts warn about security after Donald Trump’s Twitter account briefly deleted

The deactivation of @realDonaldTrump – apparently by a rogue employee – prompted much online mirth but raised concern about more sinister possibilities

‘Week of perfectly avoidable gaffes’: how Pepsi, United and Spicer went wrong

Joanna Walters talks to gurus of public relations about how Pepsi, United Airlines and White House spokesman Sean Spicer fell into PR disasters