NPR News

The news is spreading that Twitter is warning quite a few users that their accounts may have been compromised and that they should immediately change their passwords.

TechCrunch says, "keep your eyes peeled Twitter users: Twitter is sending out emails to some of its users telling them it has reset their password and asking them to create a new one."

Fast-food giant McDonald's said today that revenue at its restaurants that have been open at least 13 months fell 1.8 percent in October — the first time it has suffered a month-to-month decline in that key indicator since April 2008, according to BloombergBusinessweek.

There were 355,000 first-time claims for unemployment insurance last week, down by 8,000 from the week before, the Employment and Training Administration says.

But a measure designed to show the trend edged up: "The 4-week moving average was 370,500, an increase of 3,250 from the previous week's unrevised average of 367,250."

NPR.org's Scott Neuman wrote earlier about how "a mixture of demographics, superior organization and a few tactical missteps from Republicans" helped President Obama win the battleground states.

From this morning's post-election analyses of the presidential campaign, here are three more looks at why Obama was re-elected Tuesday: