Aircraft assembly workers walked off the job at at Boeing factories near Seattle and elsewhere early Friday after union members voted overwhelmingly to go on strike. Organized labor has made itself heard over the past year and the number of actions taken by unions has soared. There were 470 work stoppages (466 strikes and 4 lockouts) involving approximately 539,000 workers last year, according to Cornell University’s School of Industrial and Labor Relations. The nearly 500 work stoppages resulted in approximately 24,874,522 strike days.