Under Trump's Secretary of State Marco Rubio, diplomats must now review the social media accounts and communications of those on student and other visas and will bar those who are suspected of criticizing the US or Israel from entering the country.
The right to free speech in the US is a historically radical foundational belief that – perhaps more than anything else – has led to America's success.
Effectively making it illegal to criticize the actions of a foreign government is an unprecedented assault on free speech and expression. Even if you fully agree with Israel's recent and historical actions, giving the government the power to reject people on such broad lines is chilling.
When the next "forbidden" topic arises, are you sure you won't be the next one being silenced or deported?