[mkempe]

Here is what the EFF says: "[Stringrays] can also intercept metadata (such as information about calls made and the amount of time on each call), the content of unencrypted phone calls and text messages and data usage (such as websites visited). Additionally, marketing material indicates that they can be configured to divert calls and text messages, edit messages, and even spoof the identity of a caller in text messages and calls." [1]

This is what the FBI and NSA love. They never try to protect the American public from such weaknesses in the country's infrastructure, although that is what they are supposed to be doing. All so they can spy on everybody, feed illegal parallel-construction activities, and generally nurture the growth of a police state; it is also clear by now that these agencies have been interfering with national politics. These are not friends of our freedoms.

[1] https://www.eff.org/pages/cell-site-simulatorsimsi-catchers