Medical community frets over fate of Twitter
Even if it survives, the unpredictability of the new boss has raised fears his policies could profoundly alter the character of the so-called digital town square.
PREMIUM World
In this file photo illustration taken on June 07, 2012, a person looks at a computer monitor showing the old (L) and new (R) Twitter logos in Washington DC. (Photo by Douglas E. CURRAN / AFP)
