Re “Reprisals Go Around, and May Come Around” (news analysis, front page, Sept. 30): Conservatives are said to warn of the possibility that a future Democratic president might use the actions of our ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

In a pointed response to Congress MP Shashi Tharoor’s recent comments questioning the Indian-American diaspora’s "silence" on issues affecting India-US ties, including tariffs and H-1B visa fees, ...