Door-to-door search violation of Fourth Amendment? Boston Marathon bombing, Dzhokhar Tsarnaev, freedom

Haven't written a post in a while ... maybe that means there's no reason to bitch. Signs point to me being lazy because there's always something to bitch about!
The Boston Marathon Bombing Aftermath - what's the deal with people complaining about government involvement, i.e. Watertown on lock down while they tracked down the terrorists, door-to-door searches. People have been bitching and moaning about freedom and rights. Don't tread on me, give me liberty or give me death, Obama's turning the country into a Nazi state (are Jews and the "unwanted" being murdered and enslaved?) blah blah blah.
People who bitch about freedom and rights are typically cowards who have never needed to use their precious guns to defend themselves and have never been in a town where two terrorists were running around using explosives as weapons - in a standoff with police they set off bombs! Bombs! The whizzing sound of bullets, pop pop pop, the boom of shrapnel filled explosives. Is this Watertown, Mass. or Afghanistan?
People have their panties in a twist, more specifically, because the door-to-door search of the bombing suspects was (to them) a violation of the fourth amendment. The Fourth Amendment protects against search and seizure of private property without a warrant but there is an exception under critical circumstances. Terrorists critical enough for you?
Armored vehicles, tanks, heavily armored law enforcement -- what is this, "1984" or a police state?
The ACLU reported they received complaints but none from people whose homes were ACTUALLY searched. You know what? If there is a crazed terrorist running through my town - please, be my guest. Search my home because I have nothing to hide and maybe Dzhokhar Tsarnaev found his way into my home through a window or something ... who knows! I could help find him! Don't people want to help law enforcement? Don't people want to do whatever is in their power to find this man?
Luckily the brave men and women killed Tamerlan Tsarnaev and found (with the help of one Watertown resident) Dzhokhar, risking their lives while we sat at home, glued to our TVs and radios, bitching and moaning about freedom because it's so easy. It's so easy to log on Twitter or Facebook and complain and rant about liberty. How dare they lock down Watertown! How can they do that? What is this? This is the beginning of the end!
These people don't want the government and police telling them what to do, what to think, how to live but when a serial killer or terrorist is on the loose in their neighborhood -- let's see what happens then!