Exhibit (23) CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our reports included or incorporated by reference in this Form 10-K into the company's previously filed Registration Statements on Form S-8, File Nos. 2-64668, 2-40183, 2-80336, 33-57189, and 333-39938. ARTHUR ANDERSEN LLP Chicago, Illinois March 13, 2001