The return of Project Fear: how hope got sidelined in EU vote

Both sides have been guilty of negative tactics, from warning of economic disaster to focusing on the supposed threat posed by migrants

When it comes to voting day, what is the more potent weapon: hope or fear?

Judging by rival campaigns in Britain's imminent EU referendum, there can only be one answer. Both sides routinely accuse the other of adopting "Project Fear" tactics. There is no shortage of evidence.