This is nothing more than internal whitehall politcking.
Most people in Zimbabwe are too poor to buy a loaf of bread.
You think tens of thousands are going to stroll into Harare Airport and jump on a plane fror Heathrow.
Yes it is her job to stop it - so please raise her budget in the next year to address this apalling threat from thousands of miles away.
Meanwhile she briefs the press so that the public demands "something must be done" and she gets her money.
Politicians aren't as stupid as people think they are you know