As the Question says, we need to get only Tweets from USA. I have tried to test by inputting
in the Twitter Input's "Location" field, leaving the "Track" and "Follow" as blank but I am still seeing the Tweets from all over the world; they should have been only for San Francisco, if my syntax for "Location" field was right--it should be, because no error.
Note, I have followed one of ESRI's tutorials and am only using geolocated=true value.
Do I need to use some other Filter or GeoFencing?