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The Diversity Immigrant visa program has come under renewed national scrutiny after authorities confirmed that the Portuguese suspect in the Brown University and MIT shootings entered the United States through the long-standing visa lottery system. 

Following the identification of the Brown University shooting suspect, Homeland Security Secretary Kristi Noem announced on X that she was pausing the Diversity Immigrant visa program, asserting that the alleged shooter “should have never been able to come to the U.S.”

The case has prompted sharp reactions from the Trump administration, reigniting debate over whether the Diversity Immigrant visa program enhances opportunity or poses risks to national security, and whether suspending such a visa pathway amounts to justified caution or collective punishment.

What Is the Diversity Immigrant Visa Program?

The Diversity Immigrant visa program, created by Congress in 1990, makes up to 50,000 green cards available annually through a lottery system. The goal is to provide lawful immigration opportunities to people from countries that have historically been underrepresented in U.S. immigration flows.

Each year, the federal government reviews immigration data from the previous five years and allocates Diversity Immigrant visas to regions and countries with lower admission rates. For many applicants with no U.S.-based family members or employers to sponsor them, winning the Diversity Immigrant visa lottery is often described as “winning big.”

According to the U.S. Department of State, nearly 21 million people applied during the most recent 37-day application period. Roughly 130,000 applicants—representing winners and their family members—were selected, underscoring how competitive the visa lottery truly is.

Applicants who win are not guaranteed entry. They must still complete extensive paperwork, attend interviews, and pass rigorous background and security vetting conducted by U.S. authorities.

Regional Distribution and Vetting Requirements

This year’s Diversity Immigrant visa allocations included approximately 35,000 slots for applicants from Africa, 15,000 for Asia, and about 8,500 for Europeans. Even after selection, applicants undergo criminal background checks, medical exams, and multiple layers of screening by agencies such as U.S. Citizenship and Immigration Services (USCIS) and the Department of Homeland Security.

Immigration experts emphasize that Diversity Immigrant visa recipients are vetted similarly to other lawful immigrants. As the American Immigration Council noted in a 2017 report, the U.S. immigration system heavily favors family-based or employer-sponsored visas, leaving few legal options for otherwise qualified individuals without such connections.