Inside the Beltway: ‘Roseanne’: The hazards of social media for actors, journalists, politicians

The instant cancellation of ABC’s “Roseanne” following Roseanne Barr‘s unfortunate tweet on Tuesday carries with it a hefty lesson for celebrities, comedians, politicians, actors, journalists and others whose professional work environment includes a social media presence. It can be fraught with peril at times.

“If you’re going to do something …