Despite the wisdom of the ACLU's statement, it appears that the only thing that will be evolving is the rate at which the Pentagon flies drones over the US. On top of that, they are already looking for loopholes by which they can engage in more than just simple surveillance:
“While the report on domestic drone use was completed in March of 2015, it was only quietly released last week.
The units who have been operating the drones stated to the inspector general they want to fly more missions domestically. ‘Multiple units told us that as forces using the UAS capabilities continue to draw down overseas, opportunities for UAS realistic training and use have decreased,' the report said.
However, drone usage overseas has not been reduced, and, in fact, their use has skyrocketed under the current administration. Just last year, the Pentagon announced that they had plans to sharply expand the number of U.S. drone flights over the next four years, giving military commanders access to more intelligence and greater firepower to keep up with a sprouting number of global hot spots.
According to USA TODAY:
Shortly before the inspector general report was completed a year ago, the Pentagon issued a new policy governing the use of spy drones. It requires the defense secretary to approve all domestic spy drone operations. It says that unless permitted by law and approved by the secretary, drones ‘may not conduct surveillance on U.S. persons.' It also bans the use of armed drones over the United States for anything other training and testing.”
Source: Activist Post