North Korea experienced sweeping and progressively worse Internet outages extending into Monday, with one computer expert saying the country’s online access is “totally down.” President Obama said Friday the U.S. government expected to respond to the hacking of Sony Pictures Entertainment Inc., which he described as an expensive act of “cybervandalism” that he blamed on North Korea. “We aren’t going to discuss, you know, publicly operational details about the possible response options or comment on those kind of reports in any way except to say that as we implement our responses, some will be seen, some may not be seen,” State Department spokeswoman Marie Harf said. Sony canceled plans to release the movie after a group of hackers made terroristic threats against theaters that planned to show it. [...] Monday, The U.N.