Should countries involve themselves in other countries' affairs for humanitarian reasons?

Do you agree with Bill Gates that these 3 beliefs are only myths? (Gates Annual Letter)

Was the U.S. involvement in Nigerian hostage situation (Chibok schoolgirls kidnapping) good or bad?

H.R.2548 - Electrify Africa Act of 2014

Hillary Clinton or Donald Trump - who do you trust more on foreign policy?

Would you like the United States to protect your country in any way, if there was any potential danger?

Should the U.S. suspend immigration for Iranians?

H.R.3744 - Venezuelan Refugee Assistance Act