“Free Speech” != “1st Amendment”. The later is a US constitutional amendment which aims to protect the former, but other US laws also protect free speech (state

“Free Speech” != “1st Amendment”. The later is a US constitutional amendment which aims to protect the former, but other US laws also protect free speech (state constitutional provisions, statute law)-the Bill of Rights is legally just a minimum, so other laws are allowed to go even further. Non-legal factors (culture/etc) also have a role to play in protecting free speech. And of course, other countries have free speech as well (to varying degrees), but the US constitution has nothing to do with that.