That should put paid to talk that - Tradução em português

Hello folks!

I didn't understand the sentence below:

"That should put paid to talk"

The whole phrase is:

"That should put paid to talk that Google is considering buying Twitter because its potential for real-time search (you can get a sense of what is being said about a particular topic instantly with Twitter search) might just pose a threat to Google's dominance in traditional web search."

Thanks in advance!

From: http://www.foxnews.com/story/0,2933,504460,00.html