Wonderful! Do any of you remember US Vice-President Joe Biden's advocacy of high-speed rail, including the Northern New England Line, which would extend from Montréal to Boston, with those lovely quaint places in Vermont, New Hampshire, the Eastern Townships (L'Estrie) of Québec and the woody parts of Mass. I'm sure there are people in France who'd have a lot to criticize about Alstom, but it is nice to finally arrive in ... the last quarter of the 20th century.
Does the Acela have the correct dedicated track though? You can have the best rolling stock in the world, but if the track, turns and crossings aren't rated for high speed, you won't be going any faster than you will in a "slow train". We got a nice Spanish made train here for our local NW north-south service but it shares the track with slow freights, which actually have priority as maddeningly the track isn't publicly owned so it's hardly any faster than the slowest train on the line. You can see a similar thing in Europe where the TGV gets you from Paris to Lyon at lightning speed but once you get out of Lyon heading towards Italy, it slows *way* down, then in the Alps it slows down even more even though you are on the same train that was screaming through central France at 300+ kph.
The articles that I read said that the track is dedicated to the high speed trains but will still not be up to standards of Europe because they don't want to spend the full expense of completely new tracks -- they will just be upgrading the existing tracks. They are hoping for a speed of a bit more than 250km/h when works are completed. In France, the TGV operates at 320km/h on the dedicated lines. That's pretty good except that the Spanish AVE runs at 350km/h between Barcelona and Madrid.