As the Obama administration prepares to publish a long-delayed accounting of how many militants and noncombatant civilians it has killed since 2009, its statistics may be defined as much by what is left out as by what is included. Release of the information was first envisioned ... as part of strict new guidelines President Obama announced for the United States' controversial use of drones and other forms of lethal force to battle terrorism abroad. Such operations, Obama said ... would also be subject to new transparency and oversight. The death tolls, like the guidelines, will cover places where the United States conducts airstrikes but does not consider itself officially at war. They are likely to exclude Pakistan, where the CIA has conducted hundreds of drone strikes. The United States still does not publicly acknowledge CIA attacks inside Pakistan, although the Pentagon announced Saturday that it had targeted Taliban leader Akhtar Mohammad Mansour in Pakistan. Not all strikes in the included countries are considered counterterrorism actions. The totals will almost inevitably be challenged by independent groups that keep their own tallies and for years have charged that the administration undercounts civilian deaths caused by drone strikes. In emailed responses to written questions, the Defense Department said it keeps no central list of strikes "outside areas of active hostilities." Some are announced by the Pentagon, some by Central Command in charge of Yemen, and others by the Africa Command. Some are not made public at all.