Nitpicker means someone who is concerned with small details and criticizes any small fault, a fault finder. In the context of the sentence it would be criticize more.
Also, not to criticize more here, but the U.S population was 308.7 million as of the 2010 census.
To nit-pick is to unnecessarily criticize unimportant details that do not change the intended meaning of the original sentence.
For example, if someone is talking about an event that took place "in the 90's" and someone barges in to correct the first person and tell them that "in reality, it took place in 1992", that is nit-picking.
On July 4, 1776, the Congress issued the Declaration of Independence, which for the first time asserted the colonies' intention to be fully independent of the mother country. The Congress established itself as the central governing authority under the Articles of Confederation, which remained in force until 1788.
After independence (1962-1999) The Evian Accords which were signed in 1962 giving Algeria immediate independence and French aid to help reconstruct the country.
