Iran vowed to avenge Israel’s killing of senior commanders and other officers of its elite Quds Force, at a public funeral held on Friday for the dead men, but left open how it would retaliate and when. “Our brave men will punish the Zionist regime,” General Hossein Salami, the commander in chief of Iran’s Islamic Revolutionary Guards Corps, told the …

The independent presidential candidate Robert F. Kennedy Jr. has emerged as a wild card of the 2024 election, attracting a motley mix of ideologically diverse supporters, raising piles of cash and drawing legal attacks from Democrats and verbal barrages from former President Donald J. Trump. Mr. Kennedy, 70, the son of Robert F. Kennedy and an heir to an American …

Bird flu outbreaks among dairy cows in multiple states, and at least one infection in farmworker in Texas, have incited fears that the virus may be the next infectious threat to people. The influenza virus, called H5N1, is highly pathogenic, meaning it has the ability to cause severe disease and death. But while its spread among cows was unexpected, people …