[Rain Man]

I was watching a mayoral press conference yesterday and thinking the exact same thing. I presume that sign language must be missing a lot of nuance, right? Can they really make different signs for things like 'said' versus 'remarked' or 'immediately' versus 'soon'? It seems like it would be impossible to do that and that it would be more of a pidgin English.

I envision that it's something like this:

Talker person: We will begin developing a serum-based vaccine immediately with the help of our highly capable medical researchers

Signer person: We make medicine soon. Doctors help.

I could be completely wrong, though. Any sign language people here know how it works? If so, can you tell me what the sign language people are communicating during the Star-Spangled Banner?