NPR News: 05-10-2026 1AM EDT

Iran's Revolutionary Guard issued a stark warning of a "heavy assault" on a U.S. base in the Middle East should any Iranian oil tankers or commercial vessels face attack. This came via state-run television a day after the U.S. struck two Iranian oil tankers in the Strait of Hormuz, a vital shipping chokepoint. Iran is also reviewing a proposal from the Trump administration amid these tensions. Separately, Bahrain—home to the U.S. Navy's regional headquarters—announced arrests of dozens linked to Iran's Revolutionary Guard. This NPR News Now update mixes these geopolitical flashpoints with health alerts, a West Bank dispute, sports milestones, and economic snapshots.

Escalating U.S.-Iran Tensions

The U.S. strikes on Iranian oil tankers in the Strait of Hormuz prompted Iran's Revolutionary Guard to threaten retaliation against American bases. The Guard's statement, broadcast on state TV, specified attacks on Iranian vessels as a red line, raising risks for U.S. forces in the region. Iran simultaneously weighs a Trump administration proposal, with Vice Provost Mirzad Brozadi at Missouri University of Science and Technology noted in coverage—though details of his role or comments remain unspecified in the report. Bahrain's arrests of dozens tied to the Guard add friction, as the island nation hosts key U.S. naval operations. These moves underscore vulnerabilities in a waterway