I'm planning a trip the United States with my local girlfriend later this year and I'm wondering if anyone knows if the US embassy here is still issuing tourist visas for local residents.

Are the visas still good for 10 years and multiple entry? We're planning on going there in September but we don't want to book any tickets or hotels until she gets the visa approved.

She is currently employed at a local HK company and has tax records and proof of income.

How difficult is it to get approved for a tourist visa?