The UK and Germany have issued not to travel to the US, will other countries be behind them?

In the past few hours, both the UK and Germany have advised not to travel to the US.

The UK foreign travel advice says: "You should comply with all entry, visa, and other conditions of entry. The authorities in the US set and enforce entry rules strictly. You may be liable to arrest or detention if you break the rules. If you’re not sure how these requirements apply to you, contact the US Embassy or a consulate in the UK."

For my American friends on GAG, what do you think about all of this?
The UK and Germany have issued not to travel to the US, will other countries be behind them?
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