CARACAS/MILAN (Reuters) – Venezuelan air and sea rescue services were searching on Saturday for a plane carrying fashion executive Vittorio Missoni, his wife and four others which went missing off the coast of Venezuela. The plane carrying Missoni, 58, his wife, Maurizia Castiglioni, another couple and two Venezuelan crew members disappeared after taking off from the resort of Los Roques, an archipelago off the coast, the company said in a statement. "It disappeared yesterday. They have been looking for it with helicopters and ships, but have not found anything yet. …