The bottom line is this, when you have childish, immature people running the "war on terrorism",
Given its status as an official name, War on Terrorism is capitalized. -1
EXPECT a HUGE VICTORY for TERRORISTS in the form of a DEVESTATING EVENT ON U.S. SOIL.
There is really no reason for so much ALL CAPS. I can see you emphasizing "huge," and "devestating," but not the rest. Good job on periods after "U" and "S". -4
Meanwhile terrorists will have no boundaries on torture,
It would have been better to have used a period after torture, instead of a comma. This way, you can avoid run on sentences. -1
in fact "waterboarding" would be laughed at when compared to their torture.
Given that you are speaking in the future tense, you should have said, "waterboarding will be laughed at." -1
Those being tortured by terrorist would find "waterboarding" a God send.
Godsend is actually one word. -1
By the way, two wrongs don't make a right. -.5, since this isn't a grammatical comment.
When Obama swears in, have food and water stored for 6 months to a year on hand.
When Obama is sworn in. One does not swear in, one gets sworn in. -1
YOU will need it when the DEVESTATING VICTORY for TERRORISTS HAPPENS IN THE U.S..
You are using too much ALL CAPS here, and in the wrong places. YOU will need it implies that someone else needs it other than yourself (-1). It would have been better to have emphasized "will," instead of "you."
"Victory" doesn't need to be capitalized, only "devastating." The rest doesn't need it (other than U.S.) You do not put a second period if you end a sentence with an abbreviation. -6
Overall, you are sitting at -16.5 on my grammar scale.