Key speakers Tuesday include New Jersey Gov. Chris Christie and Ann Romney, the wife of the GOP presidential nominee.

Talks between the Central California SPCA and the City and County of Fresno on continuing the organization’s contract for animal control services beyond October 1, 2012 have fallen apart.  County and city leaders had hoped to reach an agreement to extend the current contract on a temporary basis through the end of the year to give more time to find a permanent solution.

The organization's executive director Linda Van Kirk issued the following statement today:

Alexander Reber may not be the youngest delegate at the Republican convention — that honor goes to his fellow Virginia delegate, 17-year-old high school senior Evan Draim.

But Reber, 21, who is an alternate, is certainly doing his part to lower the average age in the Tampa Bay Times Forum, where the convention opened Tuesday.

Officials at Yosemite National Park have announced that a second person has died after contracting hantavirus during a park visit, and another is likely sick from the disease.  Earlier this month, two other people were diagnosed with the rare pulmonary disease and one died from the illness.

Many travelers using United Airlines faced delays Tuesday, but they weren't connected to Hurricane Isaac. Instead, the airline's computer network crashed, leaving large parts of its system paralyzed Tuesday afternoon.

First noted around 2:15 p.m. EDT, the problems persisted until about 6:30 p.m. EDT, when the airline tweeted that it is "in the process of resuming operations and rebooking customers."

The mission of Circles Wyoming, part of a national anti-poverty movement, is "to build intentional, diverse and long-term relationships as people move from barely surviving to thriving."

Trained "intentional friends" are matched with someone who is looking to escape poverty, explains Director Tim Thorson. They do everything "from having coffee once a month to talk about financial goals to going to the gym together ... things that any friends would do."

Florida Sen. Marco Rubio says America will have a different view of Mitt Romney by the time he accepts the Republican nomination for president.

Rubio will introduce Romney on Thursday, the final night of the Republican National Convention. He may have provided a preview of his speech to a gathering of Florida delegates Tuesday.