EXHIBIT 3

                                POWER OF ATTORNEY


      The undersigned, Carlene Murphy Ziegler, hereby appoints Lawrence A.
Totsky, Janet D. Olsen, and Gregory K. Ramirez, and each of them individually,
her true and lawful attorney-in-fact and agent, with full power to execute and
file with the United States Securities and Exchange Commission and any stock
exchange or similar authority, for and on her behalf in any and all capacities,
any and all reports required to be filed pursuant to Section 13 of the
Securities Exchange Act of 1934 and the rules thereunder, including but not
limited to reports on Schedule 13D or 13G, any and all amendments to such
reports, with all exhibits, and any other forms or documents as may be necessary
in connection with the filing of such reports with the United States Securities
and Exchange Commission and any stock exchange or similar authority, granting
unto said attorney full power and authority to do and perform any and all acts
for and on behalf of the undersigned which may be necessary or desirable to
complete, as fully as the undersigned might or could do in person.

      This Power of Attorney shall remain in full force and effect until revoked
by the undersigned in a signed writing delivered to the foregoing
attorneys-in-fact and agents.

      IN WITNESS WHEREOF the undersigned has caused this Power of Attorney to be
executed this 2 day of April, 2002.



                                    /s/ Carlene Murphy Ziegler
                                    --------------------------
                                    Carlene Murphy Ziegler



STATE OF WISCONSIN      )
                        ) SS.
COUNTY OF MILWAUKEE)

      I, Kim R. Ruffert, a Notary Public in and for the County of Milwaukee,
State of Wisconsin, DO HEREBY CERTIFY that Carlene Murphy Ziegler, who is
personally known to me to be the same person whose name is subscribed to the
foregoing instrument, appeared before me this day in person and acknowledged
that he signed and delivered the said instrument as her own free and voluntary
act, for the uses and purposes therein set forth.

      Given under my hand and notarial seal, this 2 day of April, 2002.


                                       /s/ Kim R. Ruffert
                                       ------------------
                                       Notary Public