1. A method for providing decision support comprising: receiving suggested actions from a decision support system into a particular computerized machine; automatically determining parameters of said suggested actions using said particular computerized machine to serve as input to a question-answering system operating on said particular computerized machine; automatically generating questions based on said parameters using said question-answering system; automatically searching a corpus of unstructured data to retrieve answers to said questions using said question-answering system; automatically providing impact confidence values for each answer indicating degree of impact said answers have on said suggested actions using said question-answering system; and outputting said questions, said answers, and said impact confidence values using a graphic user interface of said particular computerized machine.