US authorities arrest man linked to N.Korea embassy raid

US authorities have arrested a former marine in connection with a mysterious February raid on North Korea’s embassy in Spain during which masked assailants roughed-up staff and stole computers, the Washington Post reported Saturday.Citing two sources familiar with the case, the Post said federal authorities arrested Christopher Ahn, a former US Marine and member of a group dedicated to the overthrow of North Korean leader Kim Jong Un.A dissident organisation known as the Cheollima Civil De