Hamas has a message for President Obama. And who better to deliver it than Sen. John Kerry, visiting Gaza this week? A senior UN official told BBC News that the letter has been received by the UN, but would not specify if Kerry had been the one to accept it. The Massachusetts Democrat did not meet with Hamas, instead focusing on humanitarian concerns. "[The visit] does not indicate any shift whatsoever with respect to Hamas...what it indicates is our effort to listen and to learn," Kerry said.