To the Editor:

Re “No Penalty for Torture” (editorial, Sept. 5) and “No Charges Filed in Two Deaths Involving C.I.A.” (front page, Aug. 31):

While it is deeply troubling that no criminal charges were filed against American personnel who committed torture, the need and opportunity for accountability remain.

Attorney General Eric H. Holder Jr. is correct that broader questions persist. It is President Obama’s responsibility to ensure that they are answered.

How did this torture occur?

How will torture be prevented from happening again?

Accountability requires that our government accept responsibility and transparently disclose what happened. The pending Senate Intelligence Committee report on the C.I.A. interrogation program will provide some answers and should be released with the fewest redactions possible.

Yet, we already know that implementing this methodical torture regime was interdisciplinary and interdepartmental, including intelligence, military, legal and medical expertise.