I hope nobody wants it to happen, but it is a reality
sure. but thats with every president. when you win the presidency, half the country loves you, half the country hates you. you think bush, clinton or the other white presidents never got death threats? how many white presidents were assassinated?
obama being black makes the story of an assassination attempt more sexy, because he's the first black president. i'm telling you though every president has had an attempt. president bush had a faulty grenade thrown within 200 feet of him when he was in jordan. clinton got death threats. on and on and on. the reason why you haven't seen a successful attempt since the early 80's is because it's impossible to get to the president now. it's not like the earlier years when people just strolled in and out of the white house and people just ran up and talked to the president.
i won't say its impossible to assassinate the president. i would say maybe a 1-3 percent chance of it occurring though. same with mccain.