I like isolationism at this point. Eff the world. I would not sacrifice one boy’s life in our military to protect anyone across either ocean or south of the river.
But I agree the reasoning for engaging should be extremely compelling, and must constitute a high degree of threat to our national interest. It should be done as the Framer's intended, through an Act of War declared by Congress. If the President can accomplish engagement that does not put our brave men & women in harm's way then he is free to do so without an Act of War from Congress. Even that though should be limited and Congress should still be in control of the purse strings for those types of engagements. I don't want to neuter the President, but I don't want him capable of open-ended engagements at his sole discretion.