What does the elastic clause do?
The Elastic Clause is in Article I of the US Constitution, and it states that any powers necessary to complete the powers listed above (the expressed powers of congress), but not necessarily mentioned there, are nonetheless granted to the Congress.
For example: An express power is that Congress can maintain an army. A implied power (powers granted by the elastic clause) would be to recruit, train, and draft citizens into that army. It could also establish military bases to which civilian access was restricted.
The elastic clause has been used throughout US history to add powers to the federal government.
It allows the federal government to expand its powers.
the elastic clause helps to protect our natural rights by allowing the government to adjust to a national crysis. However, the elastic clause is not very specific, and so really anything can be deemed "necessary and proper" as the elastic clause goes, so the elastic clause on the other hand can actually violate our rights as well. It all depends on how it is interpreted.
Pretty much any law ever passed by Congress is an example of the elastic clause. The elastic clause is refers to the clause in Article I of the Constitution which allows congress to pass any law deemed necessary and proper. The only limitation is whether such a law would violate the constitution. The Supreme Court has the power to deem any law unconstitutional.