Rule 1 of Granting Power to the FBI

Is that the FBI will abuse that power.

Rule number 2 is see number 1:

In an October 2018 ruling unsealed and posted on October 8, 2019 by the Office of the Director of Intelligence, the United States Foreign Intelligence Surveillance Court (FISC) found that the employees of the Federal Bureau of Investigation had inappropriately used data collected under Section 702 of the Foreign Intelligence Surveillance Act (FISA). The FBI was found to have misused surveillance data to look into American residents, including other FBI employees and their family members, making large-scale queries that did not distinguish between US persons and foreign intelligence targets.

The revelation drew immediate outcry from privacy advocates and renewed calls for the termination of FISA and USA FREEDOM Act that authorized bulk intelligence collection. President Donald Trump signed a bill extending Section 702 collection authorizations for six years in 2018; the Office of the Director of National Intelligence announced earlier this year that the administration would seek the extension of authority for collection of call data granted under the USA FREEDOM Act.

In a statement emailed to Ars Technica, ACLU Senior Legislative Counsel Neema Singh Guliani, said:

The government should not be able to spy on our calls and emails without a warrant. Any surveillance legislation considered by Congress this year must include reforms that address the disturbing abuses detailed in these opinions. Congress and the courts now have even more reason to prohibit warrantless searches of our information, and to permanently close the door on any collection of information that is not to or from a surveillance target.

The FBI remains the bastard child of J. Edgar Hoover.