Nobel Prize in medicine honors 2 Massachusetts researchers for microRNA discovery
CBSN
STOCKHOLM - Two researchers working in Massachusetts have been awarded the Nobel Prize in medicine.
Americans Victor Ambros and Gary Ruvkun were honored Monday for their discovery of microRNA, a fundamental principle governing how gene activity is regulated.

Washington — Amid Trump administration demands for Tehran to keep the free flow of commerce in the Strait of Hormuz, U.S. officials have told CBS News that there are at least a dozen underwater mines through the vital passageway, according to current American intelligence assessments. Arden Farhi, Kathryn Watson, Caroline Linton, Aimee Picchi and Layla Ferris contributed to this report.

Washington — President Trump said early Monday that he is postponing airstrikes on Iran's power plants after "very good and productive conversations" over the last two days about reopening the Strait of Hormuz. However, Iran's foreign ministry denied any such talks. Claire Day contributed to this report. In:











