Some comments:

I can prove through the work of Arthur Miller, The Crucible and two news texts, that there are grounds for a change in the handling of a crisis, as the fear of losing control overrides common sense.
That sounds a bit too generic. I understand the need for a thesis and such, but it could be alot more creative and less "cookie cutter."

Allow me to create an analogy to The Crucible,
Well same comment as before, it could be more graceful I guess

Mr. Hale plants ideas in the children’s minds, he gives them the idea of accusing others. Mr. Hale even provides the answers to his own questions! Mr. Hale says “Does someone afflict you, child?.... Mr. Hale has instilled fear into the people of Salem, but also provided a way out into innocence, the by-product of blaming others.
A bit repetetive here. Flow of the paragraph can be improved here.

A potential problem: Mr.Hale, by the end of the play, undergoes a dramatic transformation in which he believes the innocence of the accused. Your argument may be more effective in regards with Abigail. She lies, deceives, and causes the death of all of those innocents just because she was jealous of Elizabeth Proctor. Regarding the initial spread, I don't think it can be merely attributed to Mr.Hale, but should rather be to the Puritan society that they lived in which allowed for such accusations to be widely accepted.

The television and newspaper and internet all spread the doom and gloom
Well, I think that the issue is not that they're spreading the "doom and gloom," which may be arguably justified given the status of current financial markets, but that they're spreading populist messages for correcting the problem that are proposed by politicians instead of listening to academics who have ideas that may be undesirable, but are backed up.

as the fear of losing control overrides common sense.
Generally, it would be better off restating your prompt within your essay since again it just seems generic and could be easily fixed with some paraphrasing.

The fear that is being?? spread only gives people one option
Word left out?

Some general comments:

Personally, I don't feel that your sentiments within the last paragraph regarding thinking about bank policies in Marxist ways is sufficiently justified earlier within your essay. The essay clearly supports "the fear of losing control can dominate/override common sense," but doesn't have too much regarding Marx other than the intro/conclusion.

I think your fourth paragraph is probably the strongest and could be good for greater development. I guess you can talk about how the truth may "hurt" and not be everyone's first instinct. That can be paralelled by how the town in the Crucible does not wish to accept that young girls within their midst could commit such evil and horrendous acts or that the society that they have created fostered an atmosphere for such an event.