I'm not sure that is a proper sentence.
I do think that we could build something more dangerous to civilization than the human race is at that time - but that seems like a rather obvious thing to think - and the fact that it is possible does not necessarily mean that it is likely.
Key Noun phrase: the human race,..., trying to build an AI,
Then: {description of difficulty of said activity}
I'm not sure it's proper either, but I'm sure you misparsed it.
A friend of mine is about to launch himself heavily into the realm of AI programming. The details of his approach aren't important; probabilities dictate that he is unlikely to score a major success. He's asked me for advice, however, on how to design a safe(r) AI. I've been pointing him in the right directions and sending him links to useful posts on this blog and the SIAI.
Do people here have any recommendations they'd like me to pass on? Hopefully, these may form the basis of a condensed 'warning pack' for other AI makers.
Addendum: Advice along the lines of "don't do it" is vital and good, but unlikely to be followed. Coding will nearly certainly happen; is there any way of making it less genocidally risky?