Assuming the NSA has the full phone calls of conversations involving the Tsarnaevs, that will fork the government in its lies. The government can either say
- We were not focusing on Tsarnaev, we simply record every phone call in full (thus putting a lie to their earlier denials) or
- They don’t record every call, but were focusing on Tsarnaevs.
If the government has the tapes, then it has lied either way.
If the tape is put into evidence, the government will have to testify under oath which is the case.
This is why FBI, DOJ, NSA are stonewalling Congress, the Tsarnaev defense lawyers, and the public.
This is draft and preliminary. The above is hypotheses and speculation. Comments and corrections welcome. Please restate as questions. All other disclaimers apply.