"No one likes to see redundancies at home at the same time as he sees a surge of imports from abroad. The temptation to succumb to political pressure, to make a special case or to give respite is often overwhelming. But to do so, except in response to clearly unfair trading practices, is to court disaster. The temporary measure frequently becomes the permanent fixture and the special case, a precedent for more. And by shielding industry from fair competition in the short-term, long term decline is guaranteed."