If "during interviews" was meant to cover any form of questioning then the sentence is obviously and improperly redundant. >barred from answering questions on

If "during interviews" was meant to cover any form of questioning then the sentence is obviously and improperly redundant. >barred from answering questions on the subject during interviews. vs >barred from answering questions on the subject when asked questions on the subject. vs >barred from answering questions on the subject. It's a limiting modifier phrase, so the default is to assume it was meant to modify the meaning.