Exhibit 23

                    Consent of Independent Public Accountants

As independent public accountants, we hereby consent to the incorporation of our
reports included in this Form 10-K, into the Company's previously filed
Registration Statements File Nos. 333-83186, 333-56406, 333-59269, 333-14781,
and 333-43772.

                                                             Arthur Andersen LLP

Baltimore, Maryland
March 27, 2002