This is why if forced to speak to federal agents, it is often recommended qualify every response to any question you are asked with, "to the best of my knowledge" or similar qualifiers.
From a prominent legal blog:
'"A statement made to the “best knowledge” of a person does not mean that the person asserts the truth or accuracy of the statement or that the statement is based on that individual’s personal knowledge.'
Similar to undergoing an investigation for SF-86 process all questions are asked "To the best of your knowledge..." leaving you room to make accidental mistakes without incriminating yourself.
From a prominent legal blog:
'"A statement made to the “best knowledge” of a person does not mean that the person asserts the truth or accuracy of the statement or that the statement is based on that individual’s personal knowledge.'
Similar to undergoing an investigation for SF-86 process all questions are asked "To the best of your knowledge..." leaving you room to make accidental mistakes without incriminating yourself.