Los Alamos National Laboratory

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Los Alamos National Laboratory names new leadership for Weapons and Operations Directorates

Robert (Bob) Webster is the Lab’s next Principal Associate Director for Weapons Programs, and Craig Leasure will be the new Principal Associate Director for Operations.
June 19, 2015
Bob Webster and Craig Leasure

Bob Webster and Craig Leasure

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“It will be a true honor to lead and work with the great people in the Weapons Program to address the increasingly complex challenges of the national nuclear weapons program,” said Webster.

LOS ALAMOS, N.M., June 19, 2015—Los Alamos National Laboratory Director Charlie McMillan announced today that after nationwide searches, Robert (Bob) Webster has been selected to be the Laboratory’s next Principal Associate Director for Weapons Programs, and Craig Leasure has been selected as the new Principal Associate Director for Operations.

Webster to lead Weapons Directorate

As the Weapons Program leader, Webster will be responsible for the leadership, development, and execution of the Laboratory’s primary mission, assuring the safety, security, and effectiveness of the U.S. nuclear deterrent. The program is the primary component of the Laboratory’s $2.2 billion FY15 budget.

"Webster is a 26-year veteran of the Weapons Program here at Los Alamos and a national leader in Stockpile Stewardship,” said McMillan. “He brings a clear vision for mission-science integration, insights on tackling key challenges, and strong relationships with key internal and external stakeholders that are critical to sustaining our mission vitality.”

“It will be a true honor to lead and work with the great people in the Weapons Program to address the increasingly complex challenges of the national nuclear weapons program,” said Webster.

Since 2012, Webster has served as the Associate Director for Weapons Physics, with responsibility for the vision, execution and integration of three programs:  Advanced Simulation and Computing (ASC), Science Campaigns (SC), and the Inertial Confinement Fusion program in weapons science.

Webster has held many leadership and management positions within the Weapons Physics directorate and is highly regarded across the National Nuclear Security enterprise for his expertise in simulation, theory and experimental programs. He has shaped the direction of supercomputing here at Los Alamos and was a driver in the acquisition of the Roadrunner supercomputer. He served as the Science Advisor to the NNSA Deputy Administrator for Defense Programs in Washington, DC.  He was also a founding member and the first chair of the Predictive Capability Framework council, which supports the National Nuclear Security Administration (NNSA) in developing the decadal view of required scientific advances for NNSA Defense Programs. This work contributes to the Stockpile Stewardship Management Plan, which is a recurring report from NNSA to Congress that outlines the direction of the stewardship program.

Webster holds a bachelor's degree in Electrical Engineering from Case Western Reserve University, a master's degree in Electrical Engineering and Applied Physics from Case Western, and both a master’s degree and Ph.D. in Nuclear Engineering from Purdue University.

Leasure to lead Operations Directorate

As Operations leader, Leasure will work to enable mission delivery through driving productivity and innovation in all aspects of operations, business systems, and information systems. Leasure will oversee a total operations budget of $900 million and a workforce of over 2700 employees.

“Leasure has an extensive understanding of the breadth and depth of the Laboratory and the intersections of mission, science and operations,” said McMillan. “His work during the past two years as acting principal associate director for Weapons Programs adds to his extensive portfolio of experience. I value his leadership as we take our operations to the next level. He brings the focus and credibility needed to drive facility and infrastructure improvements, and advance our safety culture and environmental stewardship.” 

“I’m looking forward to working with the strong management team and talented employees who are part of the Operations directorate,” said Leasure.

Leasure has served as the acting leader for Weapons since 2013 and spent the previous 20 years at Los Alamos in a series leadership roles with increasing responsibility ranging from Group Leader for Environmental Chemistry to Office Director for the Planning and Integration Office for Nuclear Weapons Program, and Deputy Associate Director for Security and Facility Operations to Deputy Principal Associate Director for the Weapons Program.  Prior to coming to Los Alamos, Leasure worked for Lockheed Engineering and Sciences Company at the NASA White Sands Test Facility as a Leader with the Laboratory Test Department.

Leasure holds a bachelor’s degree in Chemistry from Florida State University, a Master’s in Chemistry from Eastern New Mexico University, and a Ph.D. in Analytical Chemistry from New Mexico State University. 

About Los Alamos National Laboratory

Los Alamos National Laboratory, a multidisciplinary research institution engaged in strategic science on behalf of national security, is operated by Los Alamos National Security, LLC, a team composed of Bechtel National, the University of California, BWXT Government Group, and URS, an AECOM company, for the Department of Energy’s National Nuclear Security Administration.

Los Alamos enhances national security by ensuring the safety and reliability of the U.S. nuclear stockpile, developing technologies to reduce threats from weapons of mass destruction, and solving problems related to energy, environment, infrastructure, health, and global security concerns.


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