What would spark an uprising in the US?

I am by no means calling for such an idea, this is just out of pure curiosity I be discussing it with my brother and he thinks that if the dep't of homeland security keep passing laws, limiting civil liberties that may spark an uprising. I also hear that if obama was to be attacked by a white supremecist, or god forbid even killed I think that could head to an uprising. Becuase he, at least he reminds me of Robert Kennedy, he has so much potential and so many accurate and new ideas, I just hope zilch happens to him.

So what are your thoughts?
(If you're gonna say "it's not gonna happen" then don't post, I know it probobly won't crop up but this is just one of those "what if" questions I can't help but permit my mind wonder about.)
I think the only uprising we would see within this country is if we were invaded than we would probably have different factions combat in america and if we were to regain our counrty again then at hand would probably be an uprising on to who would control the U.S temporarly until a president would be sworn in. This pathetic nation has be brainwashed into thinking the system it has now is good and the best in attendance is....there is no way the citizens could force change..it will remain a honourable ol boys club.
So stop thinking any president will work for any changes or betterment...it's all a dream.
The time for govermental change is immediately and I dont mean electing someone who is going give dinner odds and ends to shut you up.
Yeah, he reminds me of Bobby Kennedy, too; both jerks. I guess Bobby Kennedy human being McCarthy's right hand man doesn't bother you a bit but yet you think that the Patriot Act is limiting your civil liberty. What civil liberties do you have that's been restricted? Talking to terrorists in the Middle East about "uprising" without a free miss? Get real! When the media can no longer report the "news". When people are no longer entertain by broadcast programming, and when there is no super bowl.
Bill: " What,... you mean the games not on, and it wont be, somebodys gonna pay. Ethel, wheres my rifle"?
Ethel: " What rifle"? "You sold it 5 years ago for a plasma tv."
Bill: "Damn."

An uprising will not arise until its too late.
First, Obama does not have new ideas they are of late old liberal qualities. Second, no it would not cause an uprising because the assassination of Lincoln, Kennedy, or any other senior officer has not caused an uprising in a country A protest at both the RNC and DNC Conventions formerly the Presidential Election. It appears both parties have candidates their voters are wretched with. Myself included. :-)
I think for the most part that the people of our country hold become to complacent to uprise, but I suppose if we turned into a police state where government troops came to your doors to prod your house and sieze assets unwarranted that might do it, or a nuclear catastrophe at the hands of our government. i agree obama have similar passion to that of robert kennedy. I think if Bush makes a regulation that allows him to run for a third term and then rigged the election in attendance would be an uprising
possible if the price of gas shot up by 10 dollars near could be an uprising.... It always causes and up rising when one puts too much
yeast in the dough!
Nothing....absolutly N O T H I N G
short of martial law human being enacted prior to January 20th 2009, and even then I doubt anything would take place. Too tons kool aide drinkers, too few patriots. Had the same initial thoughts as Ben M.

Or taking away people's TV remotes.
The uprising has already started....its just within a civil manner....as long as homes go into foreclosure, gas prices rise and unemployment rises...relations will riot when faced with starvation, homelessness and bankruptcy.......append a major storm like Katrina into the mix and you will have your uprising....like mad faster then a Klansman with a rifle.
interdiction mcdonalds and burger king