It shows the great levels of prejudice against immigrants. Even though there was no evidence showing that Sacco and Vanzetti murdered the man, the jury ordered them executed, reflective of the anti-immigrant sentiment.
They urgent requirement was to restore the Muslim back into favour with the British.
The first Continental Congress alerted the colonial mitias to prepare for war in relation to the "Intolerable Acts" approved by the British Parliament. This Act was the one through which the British prepared to punish the colonists for the Boston Tea Party, although the main plan of the Congress was to petition to the King (George III) to halt the enforcement of the Act.
I think it was called a citizen's army because when citizens came together to form a 'army' the normal army, and other countries, referred to them as a 'citizen's army'
Hope this helps! :)