Can the FBI tap into cell phones and listen to your conversations?

Typically any cell phone made after sometime in the mid 00's have such capabilities including monitoring of internet addresses (ip address of wireless carrier) and user log credentials (your#@yourcarrier.com)

This type of thing happens autonomously for FCC census records, the priviledge to access such data like call length, date/time not uncommonly stretched. But your actually audio of your conversation requires a sepena, that of which is confedential between your carrier and the the authorities. your not allowed to know...