Sentence:  The public atmosphere that has been generated which makes acceptance of this law a possibility stems from the disrepute into which the labor movement has fallen as a result of Mr. McClellan 's hearings into corruption in labor-management relations and , later , into the jurisdictional squabbles that <WSD>plagued</WSD> industrial relations at the missile sites . 
Meaning of the word marked with <WSD> tags:  cause to suffer a blight