NEW YORK —
Subway and Yum Brands Inc., which owns KFC, Taco Bell and Pizza Hut, did not respond to requests for comment.
Even though they're not in unions, fast-food workers who take part in strikes are generally protected from retaliation by employers. Federal labor law gives all workers the right to engage in "protected concerted activities" to complain about wages, working conditions or other terms of employment.
"It's always been understood that people who fall under this concerted activity umbrella are protected as long as they are protesting not only on their own behalf but on behalf of others as well," said Robert Kaiser, a St. Louis labor law attorney.