System and methods provide decision support by receiving suggested actions from a decision support system and automatically determining parameters of the suggested actions to serve as input to a question-answering system. System and methods also automatically generate questions based on the parameters, automatically search a corpus of unstructured data to retrieve answers to the questions, and automatically provide impact confidence values for each answer indicating the degree of impact the answers have on the suggested actions. The systems and methods can then output the questions, answers, and impact confidence values.