Samantha Hayes on dealing with grief from all angles, interviewing Megadeth, auditioning with a cold sore, and being a perfectionist

Samantha Hayes was just 23 when she became the presenter of Nightline - the country's youngest presenter at the time. Since then, she has cage-dived with sharks without the main part of the cage (wild), brought the Mongrel Mob and Black Power together for an interview for the first time, and been…