Sentence:  Paradoxically , the same week in which Senator McClellan was attempting to <WSD>extend</WSD> the anti-trust act to labor in transportation , the Civil Aeronautics Board was assuring the airlines that if they met in concert to eliminate many costly features of air travel , the action would not be deemed a violation of the anti-trust act . 
Meaning of the word marked with <WSD> tags:  extend in scope or range or area