Millions of Americans can now claim Canadian citizenship by descent. But they have to prove it

From the beginning of the Iran conflict, United States president Donald Trump has presented an array of reasons and objectives for attacking Iran. Many of them are contradictory: It’s about nuclear weapons (the same ones that were “obliterated” last year). It’s about fundamental regime change (and yet the “Venezuela solution” would also be just fine). There was an imminent threat of attack against the US (which no intelligence agency was able to pick up, and which a recent high-level resignation from the administration has publicly claimed never existed)—or Trump just had a “gut...