What are some of the challenges that people like Sergio Vieira de Mello and others face in trying to stop genocide?

What does Power mean by “not black boxing history”?

She means don't hide anything from people and be honest about what happened so we can know everything and learn from stuff.

Explanation:

i think i am not 100% sure

One main problem would be that they are involving themselves into these dangerous situations and possibly sacrificing themselves, like Sergio, for a cause that could save many others. They are putting themselves in danger in these situations, and I think that shows a lot about their character. Another challenge that they would face would be to get others on board with them. It’s hard to accomplish something as big as what they are trying to do on your own, so they would need to try and convince other people to take a stand with them and fight against this, but not many people want to do this because it means putting their own lives in danger.

it was douglas macarthur..

answer: a

explanation:  

stocks and bonds are the two main classes of assets investors use in their portfolios. stocks offer an ownership stake in a company, while bonds are akin to loans made to a company (a corporate bond) or other organization (like the u.s. treasury). in general, stocks are considered riskier and more volatile than bonds.

savings accounts are just money in a bank- they are insured by the fdic for up to 250,000.   very little risk

the average mutual fund holds hundreds of different securities, which means mutual fund shareholders gain important diversification at a low price. which means if one stock or bond drops it will have very little affect on the mutual fund - again very little risk