内容摘要：coating your cars. It was dust carried across the country in a phenomenon known as “dirty rain.”

coating your cars. It was dust carried across the country in a phenomenon known as “dirty rain.”

An advertising poster featuring Bollywood actor Kajol is displayed outside a jewelry shop in Ahmedabad, India, on April 14, 2025. (AP Photo/Ajit Solanki)An advertising poster featuring Bollywood actor Kajol is displayed outside a jewelry shop in Ahmedabad, India, on April 14, 2025. (AP Photo/Ajit Solanki)

Police reform and civil-rights activists joined thousands of people on Sunday to mark the fifth anniversary offor actions they say set their efforts back decades.said at a graveside service with Floyd’s family in Houston that the 46-year-old Black man represented all of those “who are defenseless against people who thought they could put their knee on our neck.”

George Floyd’s sister, LeTonya Floyd, center, sings during a family celebration at Floyd’s childhood housing project on the anniversary of Floyd’s death on Sunday, May 25, 2025, in Houston. (AP Photo/Ashley Landis)George Floyd’s sister, LeTonya Floyd, center, sings during a family celebration at Floyd’s childhood housing project on the anniversary of Floyd’s death on Sunday, May 25, 2025, in Houston. (AP Photo/Ashley Landis)

George Floyd’s niece, Bianca Williams wears shoes with her uncle’s face during a memorial service on the anniversary of Floyd’s death on Sunday, May 25, 2025, in Houston. (AP Photo/Ashley Landis)

George Floyd’s niece, Bianca Williams wears shoes with her uncle’s face during a memorial service on the anniversary of Floyd’s death on Sunday, May 25, 2025, in Houston. (AP Photo/Ashley Landis)“There are threats to science ... south of the border,” said Brad Wouters, of University Health Network, Canada’s leading hospital and medical research center, which launched the “Canada Leads” recruitment drive. “There’s a whole pool of talent, a whole cohort that is being affected by this moment.”

Universities worldwide are always trying to recruit from one another, just as tech companies and businesses in other fields do. What’s unusual about the current moment is that many global recruiters are targeting researchers by promising something that seems newly threatened: academic freedom.French President Emmanuel Macron and European Commission President Ursula Von der Leyen attend the “Choose Europe for Science” event at the Sorbonne University in Paris on Monday, May 5, 2025. (Gonzalo Fuentes/Pool via AP, File)

French President Emmanuel Macron and European Commission President Ursula Von der Leyen attend the “Choose Europe for Science” event at the Sorbonne University in Paris on Monday, May 5, 2025. (Gonzalo Fuentes/Pool via AP, File)European Commission President Ursula von der Leyen said this month that the European Union intends “to enshrine freedom of scientific research into law.” She spoke at the launch of the bloc’s “Choose Europe for Science” — which was in the works before the Trump administration cuts but has sought to capitalize on the moment.