sentences:  It distinguished "Kent" noting that although there had been few situations involving substantial likelihood of serious damage to the national security or foreign policy of the United States as a result of a passport holder's activities abroad, that in the cases which had arisen, the Secretary had consistently exercised his power to withhold passports.And it rejected Agee's contention that the statements of Executive policy are entitled to diminished weight because many of them concern the powers of the Executive in wartime.It held incorrect the notion that "illegal conduct" and problems of allegiance were, "so far as relevant here, ... the only [grounds] which it could fairly be argued were adopted by Congress in light of prior administrative practice," "Kent" at 127-128, was not correct because "Kent" also recognized that the legitimacy of the objective of safeguarding our national security was "obvious and unarguable."