The HN title, "Google recalls all overseas employees over Trump", is not accurate. The article says: "Google apparently recalled all employees potentially impacted who were abroad". The order "imposes for at least 90 days a block on entry to the U.S. for citizens (including valid visa holders) from seven countries, blocks indefinitely refugee admittance from Syria and also caps the total number of refugees allowed to enter the U.S. in 2017 at 50,000, less than half the number that came into the country in 2016. The measure also suspends admittance of all refugees for a period of 120 days."

So employees who are not refugees or come from one of the affected countries would not be impacted by the order. It's not likely, for example, for Google employees who are from the EU or India to be affected.

As per HN Guidelines, "please use the original title, unless it is misleading or linkbait".[1] In this case, the article's title, "Google CEO Sundar Pichai fears impact of Trump immigration order, recalls staff" (which can be easily shortened without affecting its intent), is much more accurate.

Also, there's previous discussion of this story:

https://news.ycombinator.com/item?id=13507737

From that article, we know that the seven countries affected are Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen.

[1] https://news.ycombinator.com/newsguidelines.html