By the looks of it, it is VERY worth while, even if someone else tells you it is not worthwhile.

Because of the above mentioned time-out problems, I followed the tracks and I post both an extract and the full record found, hit #7 of 9 for a search based on "world trade center new york":

First read this extract quote:-

There is coverage (more than 1,400 images) of the aftermath of the September 11, 2001 terrorist attacks on the World Trade Center in New York City and the Pentagon in Virginia. Numerous views show the nature and extent of the devastation, the massive mobilization of personnel and equipment for search, rescue, and cleanup operations, the progress of the rebuilding effort for the damaged section of the Pentagon, visits and speeches by national, state, and local political leaders and other dignitaries, and tributes ranging from makeshift memorials near New York City's "Ground Zero" to formal commemorations on anniversaries of the tragedy.
End quote

Here is the full record:-

ARC Identifier: 626166
Title: Photographs Relating to Disasters and Emergency Management Programs, Activities, and Officials, 1998 - 09/30/2004
Creator: Department of Homeland Security. Federal Emergency Management Agency. Public Affairs Division. (03/01/2003 - ) (Most Recent)
Type of Archival Materials:
Data Files
Photographs and other Graphic Materials
Textual Records
Level of Description:
Series from Record Group 311: Records of the Federal Emergency Management Agency, 1956 - 2005
Location: Electronic and Special Media Records Services Division (NWME), National Archives at College Park, 8601 Adelphi Road, College Park, MD 20740-6001 PHONE: 301-837-0470, FAX: 301-837-3681, EMAIL: cer@nara.gov
Inclusive Dates: 1998 - 09/30/2004
Coverage Dates: 1989 - 09/30/2004
Date Note: Although this series includes images originally taken with film-based cameras starting in 1989, in 1998 digitally scanned versions of these images began to be assembled, along with images originating from digital cameras, into an integrated digital photographic series.
Part of: Record Group 311: Records of the Federal Emergency Management Agency, 1956 - 2005
Function and Use: The agency compiled this series to provide its headquarters and field offices, other government agencies, media organizations, and the general public with a central point of Internet access to images originating in digital form, as well as scanned versions of film-based images, on disaster history and the agency mission. Images were used to illustrate a variety of disaster accounts and studies, training products, and agency promotional materials in electronic and printed form.
Scope & Content Note:
This series consists of digital photographs documenting the physical and social impact of events, in the U.S. and U.S. territories, that were designated by the federal government as disasters, including floods, hurricanes, tornadoes, typhoons, tropical storms, earthquakes, wildfires, ice storms, mudslides, accidental explosions, and incidents of terrorism. Extensively documented, as well, are Federal Emergency Management Agency's (FEMA) responses to these events, involving coordination of federal, state, and local resources for, and direct sponsorship of, a range of operations aimed at evacuation, search and rescue, clearance, and cleanup; provision of emergency food, water, shelter, and medical services; restoration of basic infrastructure; and rebuilding of homes, businesses, and communities.

There is coverage (more than 1,400 images) of the aftermath of the September 11, 2001 terrorist attacks on the World Trade Center in New York City and the Pentagon in Virginia. Numerous views show the nature and extent of the devastation, the massive mobilization of personnel and equipment for search, rescue, and cleanup operations, the progress of the rebuilding effort for the damaged section of the Pentagon, visits and speeches by national, state, and local political leaders and other dignitaries, and tributes ranging from makeshift memorials near New York City's "Ground Zero" to formal commemorations on anniversaries of the tragedy.

Among other disasters, and FEMA responses thereto, covered in this series are Hurricane Andrew, striking Florida in August, 1992; the widespread flooding in Missouri, Illinois, Iowa, and other Midwestern states in July, 1993; the Northridge, California earthquake of January, 1994; the bombing of the Alfred P. Murrah Federal Building in Oklahoma City in April, 1995; Typhoon Paka (December, 1997) and Super Typhoon Pongsona (December, 2002), with their impact on Guam; El Nino-related flooding and mudslides in California in Febr..... More
Access Restrictions:
Unrestricted
Use Restrictions: Unrestricted
Specific Records Type:
digital imaging
Numbering Note: Requests for photographs in this series must include the record group number, the series identifier, and the agency-assigned digital image file name. The file name generally incorporates one or more indicators of the photographic story, such as location abbreviation, subject reference, disaster number, or assignment number, along with frame number and format type. (Examples of citations with typical kinds of file names: 311-MAD-ny_wtc_079.jpg; 311-MAD-dr1378_siteconstruction3.jpg; 311-MAD-boni04.jpg; 311-MAD-inspect2.jpg; 311-MAD-pcd1254_52.jpg.)
Finding Aid Type: Database
Finding Aid Note: The Access to Archival Databases (AAD) Resource, available on the NARA Web site, provides online access to the series "Index to Photographs Relating to Disasters, and Emergency Management Programs, Activities, and Officials" (ARC Identifier 626165). With the index, AAD makes available thumbnail images and "browser-sized" images. As an additional option, full-size digital photograph files are available for download.
Finding Aid Source: Federal Emergency Management Agency
Finding Aid Type: Doc. Package
Finding Aid Source: NARA and the Federal Emergency Management Agency
Variant Control Number(s):
Former Local Identifier: 311-MAD

Copy 1
Copy Status: Preservation-Reproduction-Reference
Extent: 4 data files and .1 linear inch of paper documentation
Count: 8751 Logical Data Record
.04 Letter Archives Box, Narrow 2.5 inch
Storage Facility: National Archives at College Park - Archives II (College Park, MD)
Media
Media Type: Magnetic Tape Cartridge
Dimensions: Varied
Media Type: Paper

Lifecycle Tracking Information

Disposition Authority Number:
N1-311-04-004
Accession Number:
NN3-311-05-002