ScreeningNotes’s review published on Letterboxd:
I knew going in that this wasn't supposed to be one of Hitchcock's best efforts, but although it took a while to get started I found myself enjoying its conclusion quite thoroughly. The "wrong man" setup is brief but effective and the final act of the film feels like proper Hitchcockian territory, it's just that the stuff in between is a little more questionable. We meet a variety of characters who we realize all too quickly aren't going to actually play a part in the narrative, and there's just generally a lot of stuff that's ultimately unimportant. But once Robert Cummings discovers the conspiracy beneath the surface I was back into the story. Some really great shorts in the final scene.
Also, the whole thing is laughably mindless in its blind patriotism, but I imagine this is something that will work for some audiences and not others.