Humans will never believe in AI untill it can Answer them.
Answering a question require the ability to request information from different fields of knowledge.
AI would need to be able to differentiate between reliable and unreliable sources of information.
The ability of auto-correct and evolve should be at the centre of any serious AI.
To answer humans, you need to reason like humans. Something not at all easy for a software.
We are currently in stealth mode. We are still a long way from developing & perfecting our technology, and till then we do not want other companies to beat us to the market.