Wong-Woo was eventually allowed to enter because the Secretary of Labor overruled the denial. This suggests that Wong-Woo had a valid application for coming to the U.S.
Because of its location. it`s far from Germany
Answer: People didn't cross picket lines to show solidarity in an attempt for better wages, better working conditions and various other things that would or could make their lives better.
Explanation: Back in the 50's and 60's when unions were very strong, you were considered a "scab" if you crossed a picket line. You took a chance of being hurt, harassed by other strikers and you showed you were not a team player.