<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>4
<FILENAME>ltrnpiandnqi.txt
<TEXT>
Report of Independent Registered Public Accounting Firm

To the Shareholders and
Board of Directors/Trustees of Nuveen Exchange-Traded
Funds

In planning and performing our audit of the financial
statements of each of the Nuveen Exchange-Traded Funds
listed in Exhibit A attached hereto (the Funds) as of and for
the year ended October 31, 2007, in accordance with the
standards of the Public Company Accounting Oversight Board
(United States), we considered their internal control over
financial reporting, including control activities for
safeguarding securities, as a basis for designing our auditing
procedures for the purpose of expressing our opinion on the
financial statements and to comply with the requirements of
Form N-SAR, but not for the purpose of expressing an opinion
on the effectiveness of the Funds internal control over
financial reporting.  Accordingly, we express no such opinion.

The management of the Funds is responsible for establishing
and maintaining effective internal control over financial
reporting. In fulfilling this responsibility, estimates and
judgments by management are required to assess the expected
benefits and related costs of controls. A companys internal
control over financial reporting is a process designed to
provide reasonable assurance regarding the reliability of
financial reporting and the preparation of financial statements
for external purposes in accordance with generally accepted
accounting principles. Such internal control includes policies
and procedures that provide reasonable assurance regarding
prevention or timely detection of unauthorized acquisition, use
or disposition of a companys assets that could have a material
effect on the financial statements.

Because of its inherent limitations, internal control over
financial reporting may not prevent or detect misstatements.
Also, projections of any evaluation of effectiveness to future
periods are subject to the risk that controls may become
inadequate because of changes in conditions, or that the
degree of compliance with the policies or procedures may
deteriorate.

A control deficiency exists when the design or operation of a
control does not allow management or employees, in the
normal course of performing their assigned functions, to
prevent or detect misstatements on a timely basis. A
significant deficiency is a control deficiency, or combination
of control deficiencies, that adversely affects the companys
ability to initiate, authorize, record, process or report external
financial data reliably in accordance with generally accepted
accounting principles such that there is more than a remote
likelihood that a misstatement of the companys annual or
interim financial statements that is more than inconsequential
will not be prevented or detected. A material weakness is a
significant deficiency, or combination of significant
deficiencies, that results in more than a remote likelihood that
a material misstatement of the annual or interim financial
statements will not be prevented or detected.

Our consideration of the Funds internal control over financial
reporting was for the limited purpose described in the first
paragraph and would not necessarily disclose all deficiencies
in internal control that might be significant deficiencies or
material weaknesses under standards established by the Public
Company Accounting Oversight Board (United States).
However, we noted no deficiencies in the Funds internal
control over financial reporting and their operation, including
controls for safeguarding securities that we consider to be a
material weakness as defined above as of October 31, 2007.

This report is intended solely for the information and use of
management and the Board of Directors/Trustees of the Funds
and the Securities and Exchange Commission and is not
intended to be and should not be used by anyone other than
these specified parties.


/s/ ERNST & YOUNG LLP

Chicago, Illinois
December 27, 2007


Exhibit A

Funds

Nuveen Insured Quality Municipal Fund, Inc.
(NQI)

Nuveen Insured Municipal Opportunity Fund,
 Inc. (NIO)

Nuveen Premier Insured Municipal Income
Fund, Inc. (NIF)

Nuveen Insured Premium Income Municipal
Fund 2 (NPX)

Nuveen Insured Dividend Advantage
Municipal Fund (NVG)


Nuveen Insured Tax-Free Advantage
Municipal Fund (NEA)

Nuveen Premium Income Municipal Fund,
 Inc. (NPI)

Nuveen Premium Income Municipal Fund 2
, Inc. (NPM)

Nuveen Premium Income Municipal Fund 4,
 Inc. (NPT)




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