Question: Who manages the laboratory which currently has custody of Experimental Breeder Reactor-II ?

Context paragraphs:
Field experiment: A field experiment applies the scientific method to experimentally examine an intervention in the real world (or as many experimentalists like to say, naturally occurring environments) rather than in the laboratory.  Field experiments, like lab experiments, generally randomize subjects (or other sampling units) into treatment and control groups and compare outcomes between these groups.  Field experiments are so named in order to draw a contrast with laboratory experiments, which enforce scientific control by testing a hypothesis in the artificial and highly controlled setting of a laboratory.  Often used in the social sciences, and especially in economic analyses of education and health interventions, field experiments have the advantage that outcomes are observed in a natural setting rather than in a contrived laboratory environment.  For this reason, field experiments are sometimes seen as having higher external validity than laboratory experiments.  However, like natural experiments, field experiments suffer from the possibility of contamination: experimental conditions can be controlled with more precision and certainty in the lab.  Yet some phenomena (e.g., voter turnout in an election) cannot be easily studied in a laboratory.

Laboratory information management system: A laboratory information management system (LIMS), sometimes referred to as a laboratory information system (LIS) or laboratory management system (LMS), is a software-based laboratory and information management system with features that support a modern laboratory's operations.  Key features include—but are not limited to—workflow and data tracking support, flexible architecture, and data exchange interfaces, which fully "support its use in regulated environments".  The features and uses of a LIMS have evolved over the years from simple sample tracking to an enterprise resource planning tool that manages multiple aspects of laboratory informatics.

Experimental Breeder Reactor II: Experimental Breeder Reactor-II (EBR-II) is a reactor designed, built and operated by Argonne National Laboratory in Idaho.  It was shut down in 1994.  Custody of the reactor was transferred to Idaho National Laboratory after its founding in 2005.

Fuji Molten Salt Reactor: The FUJI molten salt reactor is a proposed molten-salt-fueled thorium fuel cycle thermal breeder reactor, using technology similar to the Oak Ridge National Laboratory's Molten Salt Reactor Experiment - liquid fluoride thorium reactor.  It was being developed by the Japanese company International Thorium Energy & Molten-Salt Technology (IThEMS), together with partners from the Czech Republic.  As a breeder reactor, it converts thorium into the nuclear fuel uranium-233.  To achieve reasonable neutron economy, the chosen single-salt design results in significantly larger feasible size than a two-salt reactor (where blanket is separated from core, which involves graphite-tube manufacturing/sealing complications).  Like all molten salt reactors, its core is chemically inert and under low pressure, helping to prevent explosions and toxic releases.  The proposed design is rated at 200 MWe output.  The IThEMS consortium planned to first build a much smaller MiniFUJI 10 MWe reactor of the same design once it had secured an additional $300 million in funding.

Walter Zinn: Walter Henry Zinn (December 10, 1906 – February 14, 2000) was a nuclear physicist who was the first director of the Argonne National Laboratory from 1946 to 1956.  He worked at the Manhattan Project's Metallurgical Laboratory during World War II, and supervised the construction of Chicago Pile-1, the world’s first nuclear reactor, which went critical on December 2, 1942, at the University of Chicago.  At Argonne he designed and built several new reactors, including Experimental Breeder Reactor I, the first nuclear reactor to produce electric power, which went live on December 20, 1951.

Experimental system: In scientific research, an experimental system is the physical, technical and procedural basis for an experiment or series of experiments.  Historian of science Hans-Jörg Rheinberger defines an experimental system as: "A basic unit of experimental activity combining local, technical, instrumental, institutional, social, and epistemic aspects."  Scientists (particularly laboratory biologists) and historians and philosophers of biology have pointed to the development and spread of successful experimental systems, such as those based on popular model organism or scientific apparatus, as key elements in the history of science, particularly since the early 20th century.  The choice of an appropriate experimental system is often seen as critical for a scientist's long-term success, as experimental systems can be very productive for some kinds of questions and less productive for others, acquiring a sort of momentum that takes research in unpredicted directions.

Charles Plott: Charles Raymond Plott (born July 8, 1938) is an American economist.  He currently is Edward S. Harkness Professor of Economics and Political Science at the California Institute of Technology, Director, Laboratory for Experimental Economics and Political Science, and a pioneer in the field of experimental economics.  His research is focused on the basic principles of process performance and the use of those principles in the design of new, decentralized processes to solve complex problems.  Applications are found in mechanisms for allocating complex items such as the markets for pollution permits in Southern California, the FCC auction of licenses for Personal Communication Systems, the auctions for electric power in California, the allocation of landing rights at the major U.S. airports, access of private trains to public railway tracks, access to natural gas pipelines, the allocation of licenses for offshore aquaculture sites, the combinatorial sale of fleets of vehicles, and the application of complex procurements.  Plott has contributed extensively to the development and application of a laboratory experimental methodology in the fields of economics and political science.

Experimental Breeder Reactor I: Experimental Breeder Reactor I (EBR-I) is a decommissioned research reactor and U.S. National Historic Landmark located in the desert about 18 mi southeast of Arco, Idaho.  At 1:50 p.m. on December 20, 1951, it became one of the world's first electricity-generating nuclear power plants when it produced sufficient electricity to illuminate four 200-watt light bulbs. Electricity had earlier been generated by a nuclear reactor on September 3, 1948 at the X-10 Graphite Reactor in Oak Ridge, Tennessee.  EBR-I subsequently generated sufficient electricity to power its building, and continued to be used for experimental purposes until it was decommissioned in 1964.  The Museum is open for visitors from Memorial Day to Labor Day.

Alternating custody: Alternating custody, also known as "serial custody" or "shared custody", is an arrangement in which children live for long periods of time with one parent, and then spend a similar amount of time with the other parent.  The primary difference between alternating custody and joint custody is that in alternating custody, the parent that currently has the child also retains sole authority over the child/children for the duration that the child/children are with said parent.  The general reason for using this arrangement rather than a more commonly used arrangement is that the parents tend to live too far away from each other to allow for other arrangements to be feasible.

Idaho National Laboratory: Idaho National Laboratory (INL) is one of the national laboratories of the United States Department of Energy and is managed by the Battelle Energy Alliance.  While the laboratory does other research, historically it has been involved with nuclear research.  Much of current knowledge about how nuclear reactors behave and misbehave was discovered at what is now Idaho National Laboratory.  John Grossenbacher, former INL director, said, "The history of nuclear energy for peaceful application has principally been written in Idaho".

Supporting paragraphs: Experimental Breeder Reactor II Idaho National Laboratory
Answer: Battelle Energy Alliance