A nuclear weapon in the hands of terrorists is the stuff of nightmares, especially for U.S. agencies charged with preventing a devastating attack. When security or law enforcement agents confiscate nuclear or radiological weapons or their ingredients being smuggled domestically or internationally, they must quickly trace them back to their source. This is where the science of nuclear forensics comes in. With funding from DHS, Oregon State University has launched a new graduate emphasis in nuclear forensics in OSU’s Department of Nuclear Engineering and Radiation Health Physics.

Conflagrations and terrorist attacks are a threat for tunnels and bridges, so engineers are searching for ways to make tunnels and bridges as robust as possible. Construction materials, such as special types of high-performance concrete, which can partly absorb the impact of explosions, already exist, but due to their manufacturing principle, they cannot be made in any other shape than the slab, which cannot be used for cladding surfaces with complex geometries. A new type of shotcrete — which used to be considered impossible to manufacture — was created by scientists to render the structures more robust. Despite its high steel and synthetic-fiber contents, it can be sprayed on easily.

In the aftermath of the 2013 Boston Marathon bombing, FBI agents interviewed two friends of Tamerlan Tsarnaev who, with his brother Dzhokhar, planted bombs at the marathon on 15 April. A paralegal on the defense team read aloud portions of notes from the interviews at the sentencing phase of Dzhokhar’s trial on Tuesday. Both friends — Viskhan Vakhabov, who was born in Chechnya and who lived in Kazakhstan and Azerbaijan before moving to Chelsea in 2004, and Russian-born Magomed Dolakov – said they noticed Tamerlan’s growing radicalization.

At least1.6 billion people worldwide face water scarcity because their countries lack the necessary infrastructure to move water from rivers and aquifers. In the Middle East, this lack of water infrastructure combines with the effects of global warming — including prolonged in droughts — to make the entire region politically and economically unstable. Food supplies are diminished as farmers find it difficult to find water for crops, and even basic sanitary requirements are not met due to poor access to clean water, thus increasing the spread of disease.

The Israeli Air Force (IAF) launched two attacks on targets located inside Syria army bases – the first attacks took place on the night between Wednesday and Thursday, and the second wave of attacks took place the night between Friday and Saturday. The targets destroyed in the attacks were Iran-made long-range missiles which the Assad regime stored and maintained for Hezbollah, the Shi’a Lebanese militia. Since January 2013, the IAF conducted ten such attacks – the attacks Wednesday night and Friday night were attacks number nine and ten.

Somali-based al-Shabaab is increasing its guerrilla-style attacks in East Africa, but terrorism experts say the attacks are the results of the group losing its ability to fight and win on the battlefield. In the past few years, the United States has supported, with arms and training, an African Union force to carry out missions against al-Shabaab in Somalia’s major towns and urban areas. That has forced al-Shabaab to retreat to small villages, where they still collect taxes to fund their operations throughout East Africa.

Years before the 9/11 attacks, law enforcement agencies throughout the country, alarmed by the 1995 Oklahoma City bombing, began to monitor and investigate signs of domestic terrorism. That increased monitoring, and the need for coordination among various law enforcement agencies, gave rise to the fusion centers. A new report, which is supported by current and former law enforcement and government officials, concludes that post-9/11, fusion centers and the FBI teams which work with them shifted their focus from domestic terrorism to global terrorism and other crimes, including drug trafficking.Experts say that at a time when the number of domestic terrorism threats, many of which are linked to right-wing extremist groups, is surging, law enforcement must refocus their attention on the threats from within.

Over the past year, while ISIS gained control of vast territories in Syria and Iraq, U.S. drone strikes and military raids in Yemen drove al-Qaeda in the Arabian Peninsula (AQAP) into hiding. The current chaos in Yemen’s multi-sided war, however, has allowed AQAP militants to recreate a haven which counterterrorism experts say could help it launch terrorist attacks. U.S. officials acknowledge the changes on the ground, but say U.S. strategy has not changed. “Our efforts have to change their character but remain steady in their intensity,” said Secretary of Defense Ashton Carter.

On the night of 14-15 April 2014, the northern Nigerian militant group Boko Haram raided the small town of Chibok in Borno State, Nigeria. Over 200 schoolgirls were abducted and spirited away to unknown locations. A year later, despite a world-wide outcry, the 219 girls are still missing. Will a stronger anti-Boko Haram coalition and a new president be able to rescue the Chibok girls? It grows more unlikely each day that passes without their rescue. The girls who haven’t yet been sold into the sex or domestic servant trade may be dead, or stashed away deep in the recesses of Boko Haram-controlled territory. Nigeria needs to acknowledge that kidnapped individuals, much like those captured by ISIS in the Middle East, are unlikely to be seen alive again. Rather than dwelling on the security failures of the Jonathan regime, however, the schoolgirls could become a renewed source of inspiration for anti-corruption and anti-Boko Haram efforts in the region. A rallying cry for a new path forward can be created by resurrecting the memories of one of Boko Haram’s most unforgettable attacks.