a show like this is an expensive give for backers, so why shackleton, and why now?k back and ask ourselves are we these same as those people? >> it's a very cynical time these days, and i think optimism is medicine for the people. >> he is the fantasy hero. >> allen schauffler, al jazeera, seattle. >>> coming up next, the path to sainthood, taken too fast. the criticism over pope john paul's can on theization. and an american detained in north korea hours after a warning from president obama. ♪ ♪ >>> welcome back to al jazeera america. i'm john siegenthaler in new york. a lot more to cover this half hour. going nuclear, the president's warning to north korea. plus, controversial canntonization. but first ukraine's government say ls russia is ready to invade. >> translator: we call upon the russia authorities to stop this madness. >> reporter: the pentagon say russian aircraft have entered ukraine's air space multiple times in the last 24 hours. ukraine's forces are still trying to defeat pro-russian activists. >> the violations of territorial integrity in ukraine is