(e) Witness Statements

The government shall disclose any witness statements, as defined in Fed. R. Crim P. 26.2(f) and 18 U.S.C. § 3500, at least seven (7) days prior to the commencement of the proceeding at which the witness is expected to testify unless the government determines that circumstances call for later disclosure as allowed by Rule 26.2 and 18 U.S.C. § 3500.