Protection: Should our finances be single or joint?

Imagine the scene. You're sat with a couple discussing their long-term finances. One way or another the topic of life cover comes up. A few questions about health are asked – and glossed over – and when the application forms are submitted you think nothing more of it.  A few weeks or months later the application/policy is cancelled – and you never find out why. Might it have been because there was something one partner in the relationship didn't know about the other? Something that wasn't going to be answered honestly in a room with their IFA. Or worse, the policy continues with...