whipsaw strike
...that the U.S. Supreme Court has held that an employer lockout during a whipsaw strike is not an unfair labor practice under the National Labor Relations Act?
...that the <a href="./Supreme_Court_of_the_United_States" id="mwEbg" rel="mw:WikiLink" title="Supreme Court of the United States">U.S. Supreme Court</a> has held that an employer <a href="./Lockout_(industry)" id="mwEbk" rel="mw:WikiLink" title="Lockout (industry)">lockout</a> during a <b id="mwEbo"><a href="./Whipsaw_strike" id="mwEbs" rel="mw:WikiLink" title="Whipsaw strike">whipsaw strike</a></b> is not an <a href="./Unfair_labor_practice" id="mwEbw" rel="mw:WikiLink" title="Unfair labor practice">unfair labor practice</a> under the <a class="mw-redirect" href="./National_Labor_Relations_Act" id="mwEb0" rel="mw:WikiLink" title="National Labor Relations Act">National Labor Relations Act</a>?