Ask HN: How to open a business bank account in US as an non-US person?

I have been looking to incorporate a US corporation for a SAAS product. Now I understand the procedure to start a corporation. But it seems that banks wont let me open a bank account if I am not present physically in US. Is there a workaround ?

Also an agent that I talked about registering in US, told me that I can open a bank account by sending the required documents to any friend in US and let them submit the documents. Will that work ?