Patent trolls, sexting, and fobbits

Typo: “North Korea announces that it” not “is”.

Haji, n. A Haji is a Muslim who has made the pilgrimage to Mecca, and this sense of the term in English usage dates back to the early-seventeenth century. But in 2005 in U. S. military slang Haji acquired the sense of any native of a Muslim country.

Although the word usually has one -j- in this transferred sense, it is correctly spelled with two (Hajji), so I think this should read: “A Hajji is a Muslim who has made the pilgrimage to Mecca (the Hajj)...” Also, there should be no hyphen after “early.”

it is correctly spelled with two (Hajji)

I would hesitate to prescribe a “correct” spelling. Some spell it with one “J”, some with two; some prefer to spell the words as “Hadji” and “Hadj”. All spellings of these words using Latin letters are, after all, at best approximations.

(edited to correct typo)

No, Arabic makes a distinction between single and double consonants and this word has a double j.  Furthermore, if you’ll do a Google search you’ll discover that when talking about actual pilgrims hajji is far more common in English.