Action
Ensure available critical information is managed and assessed to expose threats, not cover them up. Have good processes to escalate issues to the level needed to solve them (and not above or below). Given that people often try to present a good face or simply assume they are doing well, it is important to communicate and demonstrate that bad news is welcomed and the messenger will not be shot. It is surprises that are unwelcome.
Risks/Opportunities/Surprises
A predictable surprise (problems that occur even though the warning information was available) is a great way to ruin an otherwise successful performance. It wastes time, soils reputations and creates negative consequences for any number of people and organisations. The fact that others don't seem worried or do no scenario analysis or even minimise risk doesn't mean you should be relaxed about issues. You can ask the 'dumb' questions, especially while you are early in the role, testing assumptions about what is really likely to happen.