Judge Sérgio Moro has become a household name in his country thanks to Operation Car Wash, the massive scandal in which he has sent some of Brazil’s most powerful politicians and business elite to jail for corruption. He was the keynote speaker at the 2018 Milton Friedman Prize for Advancing Liberty Dinner.

President Donald Trump has promised to implement “extreme vetting” of immigrants and foreign travelers, asserting that widespread vetting failures had allowed many terrorists to enter the United States. This policy analysis provides the first estimate of the number of terrorism vetting failures, both before and after the vetting enhancements implemented in response to the September 11, 2001, attacks. Vetting failures are rare and have become much rarer since 9/11.

Cato Institute‎ scholars respond to President Trump’s State of the Union Address on Twitter.

Watch the new Human Freedom Index video here to see which countries rank in the top and bottom, using data indicators that include personal, civil, and economic freedom.

Dr. Jeffrey A. Singer discusses the four myths of the ongoing opioid crisis. To learn more, please visit: https://www.cato.org/people/jeffrey-singer.

Trade terrorism hits the global aircraft industry as Boeing takes trade law abuse to a new level.

In the fall issue of Regulation magazine, Smith College economics professor Andrew Zimbalist writes about the Olympic experience and explains what drove a failed effort by Boston to get the 2024 Summer Olympics.

Since Donald Trump's surprising victory in the 2016 presidential election many have been looking for an explanation for his rise. But, there is no such thing as one type of Trump voter who voted for him for one single reason. Instead, five different types of Trump voters voted for him for different reasons — and these groups disagree with one another on even the core issues of the campaign. For updates on the study, follow #VOTERSSG on Twitter...

Since he started his bid for office, President Donald Trump has been a forceful detractor of the Iran nuclear deal, repeatedly vowing to dismantle it. But the nuclear deal affords the United States a number of opportunities, if the administration sustains it. Read the Policy Analysis: Preserving the Iran Nuclear Deal: Perils and Prospects

The United States maintains a veritable empire of military bases throughout the world—about 800 of them in more than 70 countries. This forward-deployed military posture incurs substantial costs and disadvantages, exposing the United States to vulnerabilities and unintended consequences. The strategic justifications for overseas bases—that they deter adversaries, reassure allies, and enable rapid deployment operations—have lost much of their value and relevance in the contemporary security...

Before committing to hundreds of billions more tax payer dollars on infrastructure spending, shouldn't we try to get the best bang for a buck from existing money? Want to learn more ways in which we can improve American infrastructure at a lower cost? Follow #InfraSolutions on Twitter and other social media platforms.

Cato Institute Board Member and former CEO and President John Allison discusses financial reform and regulation during a Trump presidency.

The Human Freedom Index presents the state of human freedom in the world based on a broad measure that encompasses personal, civil, and economic freedom. Human freedom is a social concept that recognizes the dignity of individuals and is defined here as negative liberty or the absence of coercive constraint. Because freedom is inherently valuable and plays a role in human progress, it is worth measuring carefully. The Human Freedom Index is a resource that can help to more objectively observe...

All of President Obama's climate policy's were generated through executive orders. Expect that President Trump will issue a similar executive order invalidating the Clean Power Plan. Find out more about Climate, Energy, and other topics with Cato Institute’s new series "The Next Four Years." Produced by Cory Cooper and Tess Terrible

What’s the next four years going to look like under a Trump Administration? How will public K-12 and higher education change under this administration. Find out more about Education and other topics with Cato Institute’s new series “The Next Four Years.” Produced by Cory Cooper and Tess Terrible

What’s the next four years going to look like under a Trump Administration? President Elect Trump will bring big changes to foreign policy but we're still unsure what that will look like. Find out more about Foreign Policy and other topics with Cato Institute’s new series “The Next Four Years.” Produced by Cory Cooper and Tess Terrible

What’s the next four years going to look like under a Trump Administration? It is likely that about 25% of Americans will be living in states where it is legal for them to possess and smoke marijuana, but illegal under federal law. Find out more about Drug Laws and other topics with Cato Institute’s new series “The Next Four Years.” Produced by Cory Cooper and Tess Terrible.

What topic are you curious about? Tweet your questions at #AskACatoExpert. Dr. Kealey is a professor of clinical biochemistry at the University of Buckingham in the United Kingdom, where he served as vice chancellor until 2014. As a clinical biochemist Dr. Kealey studied human experimental dermatology. He published around 45 original peer-reviewed papers and around 35 scientific reviews, also peer-reviewed. His work attracted funding from government, charities and business. Produced by...

Cato Institute scholars suggest questions for the final debate between Hillary Clinton and Donald Trump.

The 2016 Fiscal Policy Report Card on America's Governors discusses fiscal policy trends and examines the tax and spending actions of each governor in detail. The hope is that the report encourages more state policymakers to follow the fiscal approaches of the top-scoring governors. For more information on the Fiscal Policy Report Card visit: https://www.cato.org/publications/white-paper/fiscal-policy-report-card-americas-governors-2016 Produced by Tess Terrible and Meaghan Leister

Law professor James Duane became a viral sensation in 2008 for a lively lecture that explained why people shouldn’t agree to answer questions from the police. In his new book, You Have the Right to Remain Innocent, Duane expands on that presentation, offering a vigorous defense of every citizen’s constitutionally protected right to avoid self-incrimination. By using case histories of innocent persons who were wrongfully imprisoned because of information they gave to police, Duane debunks the...

So far missing from the presidential campaigns has been a serious discussion of long-run structural issues facing the U.S. economy, especially the large projected budget deficits. Continuing to delay action on fiscal imbalances is not an option for the next administration. Economic and fiscal realities will constrain future policy options, as noted in recent studies by the International Monetary Fund and the Cato Institute. View full event here:...

View the full event here: https://www.cato.org/events/15th-annual-constitution-day.