Iran’s supreme leader, Ayatollah Ali Khamenei, vowed “a tooth-breaking response” against Israel and the United States on Saturday “for what they are doing against Iran” and its proxies.

A bitter and bloody war in Ukraine has devastated the country, further isolated Russia from the West and fueled economic insecurity around the world. Tit-for-tat moves this week included the use ...

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Ever received a paper token from your next-door paan shop in lieu of a small change, which he would accept the next time you visit him? Imagine that token digitally, and that's your cryptocurrency.