As soon as Mebrahtom Keflezighi, better known as Meb, won the New York City Marathon on Sunday, an uncommon sports dispute erupted online, fraught with racial and nationalistic components: Should Keflezighi’s triumph count as an American victory?As soon as Mebrahtom Keflezighi, better known as Meb, won the New York City Marathon on Sunday, an uncommon sports dispute erupted online, fraught with racial and nationalistic components: Should Keflezighi’s triumph count as an American victory?