Question: Sources from what headquarters of the United States Department of Defense, claim the missile profile of the Sejil closely matches those of the Ashura (Ghadr-110) and the Samen?
Context: United States Department of Defense Police are the uniformed civilian police officers of the United States Department of Defense, various branches of the United States Armed Forces (such as the Department of the Navy), or specific DoD activities (Defense Logistics Agency Police).  They are also referred to as DoD Police.  The DoD Police are responsible for law enforcement and security services on DoD owned and leased buildings, facilities, properties and other DoD assets.  It is important to note that "Department of Defense Police" is a catch-all phrase that refers to any civilian engaged in police duties for the Department of Defense and its component branches of the US Armed Forces. Sejil, or Sejjil, (Persian: سجیل‎ ‎ , a Quranic word meaning "baked clay", see Surat al-Fil) is a family of Iranian solid-fueled ballistic missiles.  The Sejil are replacements for the Shahab liquid-fueled ballistic missiles.  According to US Pentagon sources, the missile profile of the Sejil closely matches those of the Ashura (Ghadr-110) and the Samen. The Pentagon is the headquarters of the United States Department of Defense, located in Arlington County, Virginia, across the Potomac River from Washington, D.C. As a symbol of the U.S. military, "The Pentagon" is often used metonymically to refer to the U.S. Department of Defense. The 10th Army Air and Missile Defense Command (AAMDC) is a theater level Army air and missile defense organization and directly subordinated to United States Army Europe.  On order, 10th AAMDC deploys worldwide to conduct joint and combined/coalition air missile defense ops for US European Command.  10th AAMDC serves as the United States Army in Europe's executive agent for all theater air and missile defense ops and air missile defense force management. Ground-Based Midcourse Defense (GMD) is the United States' anti-ballistic missile system for intercepting incoming warheads in space, during the midcourse phase of ballistic trajectory flight.  It is a major component of the American missile defense strategy to counter ballistic missiles, including intercontinental ballistic missiles (ICBMs) carrying nuclear, chemical, biological or conventional warheads. GMD is administered by the U.S. Missile Defense Agency (MDA), while the operational control and execution is provided by the U.S. Army, and support functions are provided by the U.S. Air Force.  Previously known as National Missile Defense (NMD), the name was changed in 2002 to differentiate it from other U.S. missile defense programs, such as space-based and sea-based intercept programs, or defense targeting the boost phase and reentry flight phases.  The program was projected to have cost $40 billion by 2017.  That year, the MDA scheduled its first intercept test in three years in the wake of North Korea's accelerated long-range missile testing program. Terra-3 was a Soviet laser testing centre, located on the Sary Shagan anti-ballistic missile (ABM) testing range in the Karaganda Region of Kazakhstan.  It was originally built to test missile defense concepts, but these attempts were dropped after the Anti-Ballistic Missile Treaty was signed.  The site later hosted two modest devices used primarily for experiments in space tracking.  Several other laser test sites were also active during this period.  During the 1980s, officials within the United States Department of Defense (DoD) suggested it was the site of a prototypical anti-satellite weapon system.  The site was abandoned and is now partially disassembled. The Aegis Ballistic Missile Defense System (Aegis BMD or ABMD) is a United States Department of Defense Missile Defense Agency program developed to provide missile defense against short to intermediate-range ballistic missiles.  It is part of the United States national missile defense strategy.  Aegis BMD (also known as Sea-Based Midcourse) is designed to intercept ballistic missiles post-boost phase and prior to reentry. Lt. Gen. Ronald T. Kadish, Ret.  (born April 6, 1948) is a United States Air Force officer who rose to head the Ballistic Missile Defense Organization and the Missile Defense Agency within the United States Department of Defense. The Ballistic Missile Defense Organization (BMDO) was an agency of the United States Department of Defense that began on 20 May 1974 with the responsibility for all U.S. ballistic missile defense efforts.  It evolved from the SAFEGUARD System Organization.  The original mission of BMDO was comparable to that of SAFEGUARD, which was to defend U.S. ballistic missile sites, but BMDO additionally had the more general role of conducting research and development in advanced ballistic missile defense (BMD) technology and also managed what was then called the Kwajalein Missile Range (KMR).  In July 1984, BMDO became a part of the Strategic Defense Initiative Organization (SDIO) and one year later BMDO was renamed the U.S. Army Strategic Defense Command. The Missile Defense Agency (MDA) is the section of the United States government's Department of Defense responsible for developing a layered defense against ballistic missiles.  The agency has its origins in the Strategic Defense Initiative which was established in 1983 and was headed by Lt. General James Alan Abrahamson.  Under the Strategic Defense Initiative's Innovative Sciences and Technology Office, headed by physicist and engineer Dr. James Ionson, the investment was predominantly made in basic research at national laboratories, universities, and in industry.  These programs have continued to be key sources of funding for top research scientists in the fields of high-energy physics, supercomputing/computation, advanced materials, and many other critical science and engineering disciplines — funding which indirectly supports other research work by top scientists, and which was most politically viable to fund within the Military budget of the United States environment.  It was renamed the Ballistic Missile Defense Organization in 1993, and then renamed the Missile Defense Agency in 2002.  The current commander is U.S. Air Force Lt. Gen. Samuel A. Greaves.
Answer: The Pentagon