Turkey has completed more than half of a planned 317-mile wall along its border with Syria. The wall is not built as a regular wall would: It consists of portable concrete blocks, each weighing seven tons, placed next to each other. The concrete blocks are 6.5-foot thick at the base and 10-foot high. Each block is topped with three feet of razor wire. The government says the wall will improve security, but human rights groups warn refugees fleeing war will be tapped on the Syrian side.

The global toll of terrorism is rising at an alarming rate. According to the Institute for Economics and Peace, terrorist incidents claimed 3,329 lives in 2000 but 32,685 in 2014, and the economic costs of terrorism skyrocketed at least tenfold during the same period. As a result, certain governments are proposing that the UN establish a new court with a specific remit to prosecute international terrorist crimes. The court, I sablished, would join the growing ranks of international courts and tribunals that have been rapidly proliferating since the end of the Cold War. Of the more than 37,000 legally binding judgements passed by these international courts, some 90 percent have come down since 1990.The problems and risks of creating such a court are all too apparent, and go some way to explaining why the court has never been set up.

The 9/11 attacks were perpetrated by Islamist extremists, resulting in nearly 18 times more deaths than America’s second most devastating terrorist attack – the Oklahoma City bombing. More than any other terrorist event in U.S. history, 9/11 drives Americans’ perspectives on who and what ideologies are associated with violent extremism. But focusing solely on Islamist extremism when investigating, researching and developing counterterrorism policies goes against what the numbers tell us. Far-right extremism also poses a significant threat to the lives and well-being of Americans. This risk is often ignored or underestimated because of the devastating impact of the 9/11 terrorist attacks.It remains imperative to support policies, programs, and research aimed at countering all forms of violent extremism.

Insider threats could take many forms, such as the next Edward Snowden, who leaked hundreds of thousands of secret documents to the press, or the next Nidal Hasan, the Fort Hood mass killer. Indeed, in today’s high-tech and hyperconnected world, threats from insiders go far beyond leakers and lone-wolf shooters. A single insider might be able to help adversaries steal nuclear material that terrorists could use to make a crude nuclear bomb, install malware that could compromise millions of accounts or sabotage a toxic chemical facility to cause thousands of deaths. How can we better protect against the enemy within, no matter what it is that needs to be protected? In our high-tech society, the insider threat is ever-present. High-security organizations, governments and companies alike need to take action to counter the organizational and cognitive biases that often blind us to the insider danger – or future blunders will condemn us to more disasters.

Iran has sent “game-changing” weapons to its proxy group Hezbollah, which has been actively building tunnels and fortifications along Lebanon’s border with Israel, a knowledgeable observer said. “Israel reads the map and realizes that Hizbullah’s weapons arsenal has steadily grown, and is now several times larger than it was in 2006, and that the kind of weapons that the enemy tried and is still trying to prevent the resistance from acquiring – namely, what Israel calls ‘game-changing’ weapons – is available to it in great amounts,” he added.

The Trump administration on Monday announced it had imposed sanctions on Venezuela’s vice-president, Tareck El Aissami, charging that he was a major drug trafficker. El Aissami is the most senior Venezuelan official – and one of the most senior Latin American official — to have been charged of drug offenses by the United States. El Aissami has caught the eye of U.S. law enforcement years ago, when, as interior minister in the government of Hugi Chavez, he ordered his underlings to issue dozens of fraudulent Venezuelan passports to people from the Middle East, including members of Hezbollah.

The United Nations warned Lebanese President Michel Aoun against arming Hezbollah, a day after Aoun said that the Iran-backed terrorist organization was essential to Lebanon’s security. UN Council Resolution 1701, which was adopted unanimously to end the 2006 war between Israel and Hezbollah, called for the disarming of all militias in Lebanon and the re-establishment of the Lebanese government’s authority over the southern part of the country, and prohibited the transfer of arms to any entity other than the government in Lebanon. Hezbollah’s continued armed presence in southern Lebanon violates these three elements of the resolution.

A new, comprehensive study of individuals in the United States considered ISIS supporters, challenges widely held assumptions that ISIS supporters are uneducated, isolated, and unemployed, while finding almost no refugees among the group studied. One of the report’s authors said that for policymakers, the report shows shutting the U.S. borders to refugees and visitors from Islamic countries won’t prevent support for ISIS and could blind authorities to real threats. Officials need to understand ISIS’s propaganda strategy in the United States and target its methods for driving recruitment and radicalization, he added.

Thursday’s appellate court opinion, which denied President Donald Trump’s appeal concerning his immigrant ban executive order, was unsurprising. It cautiously declined to upset the status quo, temporarily continuing to prevent the executive order’s enforcement nationwide. But it also allowed for further briefing and argument. Ultimately, this is a clear defeat for the Trump Administration. But, given the necessarily preliminary nature of these emergency proceedings, it may not be a permanent one. Trump can continue to argue before this three-judge panel, appeal their decision to the full 29-judge-strong Ninth Circuit Court of Appeals, and, ultimately and predictably, move on to the Supreme Court. Given its fast-track nature, the case will likely reach the Supreme Court before the current vacancy is filled.