Officials recently unveiled a proposal to commit $10.7 billion for the creation of a nationwide broadband network for public safety officials. The system would allocate space in the 700 MHz broadband spectrum — dubbed the “D Block” — that public safety would use both in day-to-day operations, and also during an emergency event.

Today, the Internet that Mr. Cerf helped create more than 30 years ago is about to max out. Within the next 12 to 18 months, or perhaps sooner, every single 4.3 billion Internet Protocol addresses will be allocated, and the Internet, at least as it exists today, will have reached full capacity. “There are 4.3 billion addresses, and a lot of people have more than one,” said Leo Vegoda, manager of number resources at Icann. “And there are seven billion people on the planet. That’s a big mismatch.”

BARCELONA — Neelie Kroes, the European telecommunications commissioner, said Monday that she was likely to seek new regulations to put an end to the “rip-offs” that Europeans face when using data services on smartphones outside their home countries. Speaking at the opening day of the Mobile World Congress, the industry’s largest convention, Ms. Kroes said limits placed on the charges operators charge each other for mobile data roaming, which were enacted in 2007, had failed to significantly lower the charges consumers paid.

Jobs has struggled with health issues in recent years and the news that he will be taking a leave of absence comes a year and a half after the chief executive received a liver transplant. In 2004, Jobs announced he had been diagnosed with pancreatic cancer and, that same year, underwent surgery to remove the cancer. He took a medical leave of absence between January and June 2009, with Cook taking over responsibilities for day to day operations. He received a liver transplant in 2009. When asked about his health at an Apple press conference in July, Jobs replied he was "doing fine" and "feeling great." Yet others have expressed concerns about the CEO's health. The New York Times writes, "In recent months, Mr. Jobs has looked increasingly frail, according to people know have seen him." The lack of a precise end date on Jobs' leave of absence is troubling to some, suggesting the CEO's health issues could be complex and more long term. Cook, not Jobs, took the stage at a recent press conference in New York at which Verizon announced that it would begin carrying Apple's iPhone. Jobs is expected to appear with News Corp CEO Rupert Murdoch to unveil the media mogul's new iPad newspaper, The Daily.

Caroline Kennedy kicks off digital JFK library: On Thursday, Caroline Kennedy unveiled a digital version of her father President John F. Kennedy's presidential archive, which is now available at www.jfklibrary.org. According to the press release, the Web site has approximately 200,000 pages, 300 reels of audio tape, 300 museum artifacts, 72 reels of film and 1,500 photos.