Was the mob becoming more intense and dangerous? what makes you think this way?

Yes because it was growling

A mob can be both instense and dangerous

Explanation:

Contemporary forms of life bear witness to the dissolution of the concept of “people” and the renewed relevance of the concept of “multitude”. Fixed stars of the great debate of the seventeenth century, and lying at the origin of much of our ethical-political lexicon, these two concepts lie in the antipodes of each other.

The "people" are centripetal in nature, converge on a general will, they are the interface or reflection of the state; the 'multitude' is plural, flees political unity, does not enter into pacts with the sovereign, not because it does not relinquish rights to it, but because it is reactive to obedience, because it is inclined to certain forms of unrepresentative democracy.

since most of current immigration into the u.s., both legal and illegal, is coming from latin america. it would be very difficult to imagine or rationalize a country my fellow citizens are trying desperately to flee into, would pose a threat to my prosperity or freedom. since the u.s. has a long history of intervention, but no record of permanent occupation, i would not feel oppression is the main objective.  

the largest free trade nation, along with the largest gdp in the world wanting to expand it's economic policy on us, and including us, could only be positive. the u.s. government has no interest in, or way of simply forcing american culture on us. and has no track record of it. other nations that adopted american social culture, or "americanization" did so voluntarily, mainly through the choice of allowing american businesses and u.s. citizens to come into their nations, as free operatives.

a.) are both appointed for life