These credible professionals certainly seem to think ebola can infect via aerosol, and perhaps remain in the air for up to an hour:

http://www.cidrap.umn.edu/news-perspective/2014/09/commentar...

I have to believe the US Government already knows that ebola is capable of this, they've been studying it for decades. If it can spread by aerosol, they're lying to prevent substantially more panic.

Downvoters should start by refuting the linked article - it's a pretty important article. The authors are guaranteed to know a lot more about ebola than anyone here.