Jamie Tulloch is a successful exec at a top tech company, a long way from the tough upbringing that drove him to rise so far and so quickly. But he has a secret - since the age of 23, he's had a helping hand from the Legend Programme, a secret intelligence effort to prepare impenetrable backstories for undercover agents. Real people, living real lives, willing to hand over their identities for a few weeks in return for a helping hand with plum jobs,...