The spy planes of the U.S.

I found this article about robot spy planes in BBC.

     It was uncovered that the new unmanned spy plane “SR-72” which is one of the succeeding planes to the supersonic Blackbird “SR-71” is being developed by Lockheed Martin, and this type’s one can reach the speed of Mach 6 and mount weapons to attack against targets.
      According to the article, the “SR-72” will become very fast because it is going to use a special engine, so the enemy have no time to react or escape from “SR-72.” Moreover, Brad Leland, Lockheed Martin's hypersonic programmed manager said that "Speed is the next aviation advancement to counter emerging threats in the next several decades." Therefore, “SR-72” will be operated as main units to strike enemies in the future. However, these robot spy planes which put nobody in them have caused several severe problems, for example, some spy planes have bombed the innocent by mistake. So, I think if they want to make “SR-72” operational by 2030, they should try to solve these issues.

      Now, I wanted to ask you that 1) What do you think about spy planes? and 2) Do you have any idea to solve the problems like bombing errors?