Theodore Roosevelt was passionate about the need for simplified spelling. He routinely spelled “thorough” as “thoro” and so on. He even considered having all White House documents use his simplified method of spelling, but backed down when Congress threatened to block funding. Edmund Morris tells the story in his wonderful bio Theodore Rex.
That’s my personal objection to the “modern” spelling of the word, too.
Check newspaper reports of kidnap(p)ings for any time after the early 1970s. By the way, here is a link showing the spelling with a single p for the word evidently isn’t all that uncommon.
Agree- cween looks too Welsh 
Well a Google search result comparison yields:
Results 1 - 10 of about 37,900 for kidnaper [definition]. (0.17 seconds)
Results 1 - 10 of about 1,340,000 for kidnapper [definition]. (0.44 seconds)
In the News search, the results were a little more encouraging
Results 1 - 2 of 2 for kidnaper. (0.03 seconds)
Results 1 - 10 of about 806 for kidnapper. (0.09 seconds)
Results 1 - 8 of 8 for kidnaped. (0.09 seconds)
Results 1 - 10 of about 20,541 for kidnapped. (0.07 seconds)
Firefox spell check also underlines “kidnaper” and “kidnaped” as spelling mistakes.
As mentioned the big problem is that we’d have to do it again every few years. Or we could just let people do what do they do now and spell things more or less how they like as long people understand it.
I think a lot of times the spelling of a word indicates its origin. It might not be wise to start writing a newspeak dictionary quite yet.
Well, whatever newspapers print that aren’t following AP Style. The AP stylebook has an entry for this very word:
Any newspapers that follow AP Style (and pretty much all follow AP Style or some variant of it) should not be spelling the word with one “p.”
One newspaper tried a rather simple spelling of:
Tho= though
Thru= through
and so forth. You still see these and I think they are accepted as varient spellings by most.
And that would be a problem because?
You could always look at text messaging where some of the abbreviations seem to be working through into the mainstream of the language.
Honest question… in what English-speaking place do “sad” and “bad” NOT rhyme? And how on earth would they be pronounced?
The problem with simplfied spelling (“the way it’s prounounced”) and the reason it doesn’t work was clearly spelled out by Ira Gershwin:
“You say tuh-may-toe
And I say tuh-may-toe”
And, as Ira pointed out:
“Let’s call the whole thing off.”