While a definition of 'power' may be needed, one could argue that poetry has a specific type of power, related to the transmission of experience. Humanity's first approaches to culture communication were done on verse, in the form of poetry (as one can see on the different<em> chansons de geste </em>around Europe, Homeric poems and Greek theatre, and the folklore of orient, for example). Poetic language can transmit human experiences; it can, through the use of verse, of repetition and other poetic devices, cultivate the memory of a particular experience, moment or emotion in a way that prose, due to its to novelty and information, can´t.
In his "Letter from Birmingham Jail," King argues that "injustice anywhere is a threat to justice everywhere." The evidence he employs is that of racially discriminatory laws in the South. King argues that the existence of unjust laws such as segregation represent an injustice. And this unjustice is an obstacle for achieving equality and justice everywhere in the country. For example, if white people do not believe in segregation, this nonetheless means that they have to abide by the law, causing injustice. The appeal that he uses is logos, as he encourages us to think of the logic of the arguments put forward by lawmakers.
The word that provides the best context clue to the meaning of churning is turning.
Answer: The catacombs
The catacombs were the murder weapon in the cask of Amontillado.
