Sentence:  However, truth and lies can usually be confirmed or denied by speaking with eyewitnesses of events in order to verify what took place. The amount of time separating the event in question from when it was <WSD>broadcasted</WSD> also makes a difference. 
Meaning of the word marked with <WSD> tags:  To transmit a message over a wide area; "specifically", to send an email in a single transmission to a (typically large) number of people.