HOMELAND DEFENSE

& Security Digest

20 DECEMBER 2022

HDIAC collects and publishes articles related to our technical focus areas on the web to share with the DoD community.

FEATURED ARTICLE

National Ignition Facility Achieves Fusion Ignition

The U.S. Department of Energy (DOE) and DOE’s National Nuclear Security Administration (NNSA) announced the achievement of fusion ignition at Lawrence Livermore National Laboratory (LLNL) — a major scientific breakthrough decades in the making that will pave the way for advancements in national defense and the future of clean power. On December 5, a team at LLNL’s National…

Read More...

Featured Notable Technical Inquiry

Moshan Kahandawala, Ph. D.

Learn More
A bin filled with plastic bottles.

What is the role of cutinases or esterase activity on biodegradation of man-made structures?

The biodegradation of synthetic polymers is a key element for achieving a circular economy with high material reuse and environmentally friendly waste products.  Laccase enzymes, which play a key role in lignin degradation, have been shown to degrade high-molecular-weight polyethylene (PE) and nylon-66 membranes using a laccase-mediator system.  Additionally, esterases and cutinases are known to depolymerize polyester-based plastics such as polyethylene terephthalate (known as PET)…

Learn More
Two U.S. Army soldiers in gas masks with yellow smoke surrounding them in a simulated chemical attack exercise

What are choking agents?

There are three main kinds of choking agents:  (1) ammonia, (2) chlorine gas, and (3) phosgene. Symptoms vary by agent type, severity, dosage, and exposure route (inhalation, ingestion, skin, and eyes) [2]. General symptoms applicable to all choking agents include, but are not limited to, irritation of the airway; difficulty breathing; accumulation of fluid in the lungs (pulmonary edema); nausea; vomiting; severe secretions from the…

Learn More
A USAF medic applies moulage around the eyes of another medic ahead of a simulated blister agent attack exercise

What are blister agents?

There are three main types of blister agents: (1) sulfur mustard, (2) mustard-lewisite mixture, and (3) lewisite. The onset and severity of symptoms for each blister agent are dose- and route-dependent (inhalation, ingestion, skin, or eyes). General symptoms of blister agents include tissue damage, cell death, DNA damage, shortness of breath, severe cough, lung damage, stinging and burning of the eyes, sinus pain, nose bleeds,…

Learn More

What are nerve agents?

Nerve agents listed as Schedule 1 agents by the Chemical Weapons Convention include (1) tabun (GA), (2) sarin (GB), (3) soman (GD), (4) VX, and (5) cyclosarin [2]. Each has its own distinct physical properties but produces similar symptoms. Constriction of pupils (miosis), clouded vision, runny nose, tight chest, shortness of breath, headache, salivation, muscle spasms, sweating, vomiting, heavy fatigue, interim lack of breathing (apnea),…

Learn More

What information is available for M61 filter breakthrough times?

The M61 filter canister is fielded to the U.S. military for use with the M50 joint service general purpose mask. The filter canister is designed to receive incremental upgrades as new materials and designs are developed. Since their fielding in the late 2000s, various tests have been conducted to measure the breakthrough time of the filter canisters against various chemical warfare agents and toxic industrial…

Learn More

What information is available regarding resources and training for medics to perform in austere environments and conduct prolonged care?

The Homeland Defense & Security Information Analysis Center (HDIAC) was asked to provide resources and trainings available for medics to perform in austere environments and conduct prolonged care. Military medical professionals must often provide prolonged care in austere environments that have a lack of resources and pose logistical challenges and potential dangers. Therefore, it is important for military medical personnel working in these environments to…

Learn More

What are the key emerging and reemerging infectious diseases in west and central Africa?

The United States has had a growing interest in Africa for nearly 30 years, as evidenced by an increase in military and humanitarian activities there, not overlooking the 2007 creation of the U.S. Africa Command. Apart from insurgencies, terrorism, and political upheaval, infectious disease is a major challenge to operations in Africa, especially in the western and central regions. Several significant disease outbreaks have occurred…

Learn More
a hand holding digital gearwheels with digital network lines

The 2nd Annual Research and Development (R&D) Workshop “Protecting the Software and Hardware Supply Chain: Demonstrating Improvement Over Time”

The Department of Homeland Security Science and Technology (DHS S&T) cyber community of interest (COI) and the Networking and Information Technology Research and Development (NITRD) Cyber Security and Information Assurance Interagency Working Group (CSIA IWG) are excited to once again co-host the workshop on protecting the software and hardware supply chain.  This year’s focus is on methods to measure and/or demonstrate improvements to software and…

Learn More

Where can combatant commands access established international agreements allowing/enabling science and technology collaboration (i.e., information exchange, meetings, experiments, field tests, field observations, training and exercises)?

Learn More

FUTURE WEBINARS

HDIAC hosts live online technical presentations featuring a DoD research and engineering topic within our technical focus areas.

DID YOU MISS OUR LAST WEBINAR?

UPCOMING WEBINAR

Bombing Prevention Resources for Mitigating the Use of Explosives and IEDs Against Critical Infrastructure

The mission of the Cybersecurity and Infrastructure Agency’s Office for Bombing Prevention is to protect life and critical infrastructure by building capabilities within the public and across the private and public sectors to prevent, protect against, respond to, and mitigate bombing incidents. This session will look at threat landscape awareness products, training opportunities, and videos to…

Read More...

UPCOMING EVENTS

2025 Advanced Functional Fabrics Summit

This event gathers Advanced Functional Fabrics of America (AFFOA) members and the greater ecosystem from across the United States each year at the Advanced Functional Fabric Summit. Attendees will learn about new advanced fiber and…

Emerging Technologies for Defense Conference & Exhibition

Explore the innovations that will help shape national security for the next century at NDIA’s flagship Emerging Technologies Conference! Hear directly from technology leaders in government, defense industry, the commercial sector, and academia on cutting-edge…

GridSecCon 2025

NERC, the E-ISAC, and WECC are cohosting the 14th annual Grid Security Conference, GridSecCon, from October 7-10 in Las Vegas. Join cyber and physical security leaders for four days of collaboration, networking, and expert training…

TechNet Indo-Pacific 2025

TechNet Indo-Pacific is the largest strategic event of its kind in the Indo-Pacific Rim. USINDOPACOM works closely with partners to enable resilient, survivable and secure collaboration across the spectrum of contingencies. TechNet Indo-Pacific, now in…

Voice From the Community

Krawczyk Picture 2
Benjamin Krawczyk

Senior Electrical Engineer, Collins Aerospace

Benjamin Krawczyk is a Navy Veteran who works as a nuclear effects engineer at Collins Aerospace, where he advises/assists with the development of nuclear hardened electronics for platforms like the B-52 bomber, B-2 bomber, E-4B SAOC, and E-6 TACAMO. He specializes in radiation effects (testing/analysis/assurance) but also supports the Collins’ electromagnetic effects lab as an engineering test lead. As an assistant weapons officer onboard a ballistic missile submarine, he studied nuclear weapons, their effects, and mitigation strategies.

Want to be featured in our Digest?

Submit your "Voice From the Community"