Choosing the best option that serves the common good could lead to such difficult decisions. But has always, nations will be judged on the consistency of principle and purity of state, and deliberate application of double standards will negate any positive it was intended to solve. A wrong committed elsewhere under the guise of the same principal, or obstinate refusal to adhere to instruction from the Messenger of the Word(Church, such has the death penalty) will not justify the taking of the extra lives on the plane.
Deliberate incursions into other sovereign states by sending drones that will target a single citizen but collaterally accepts multiple deaths does not justify the means. Basically the rule in regards to man in regards to negation of all good whilst he is in a state of mortal sin applies to nations has well. Nations formed by the willing contract of individuals, and who collectively invoke from Deity assistance, forgiveness and recognition for acts done in this form could not reasonably expect graces and the privilege is lost and the nation goes it alone.