Readers respond to Dhruv Khullar’s essay on the Trump Adminstration’s threat to scientific progress and to Carrie Battan’s piece about Zyn.

Readers of the Los Angeles Times Sports section give their thoughts and opinions on the Dodgers, Lakers, cost of MLB games ...

An interim U.S. attorney is demanding information about the selection of research articles and the role of N.I.H. Experts ...