5 stories to follow: July 16

Here's your daily look at five stories to know about:

1. Voter ID trial: The trial over the constitutionality of Pennsylvania's voter ID law, which would be one of the strictest in the country if implemented, began Monday and is expected to continue for the next two weeks. The plaintiffs say the law would disenfranchise elderly, disabled and minority voters, while state officials argue than anyone eligible can obtain identification for free.

2. Schuylkill search: Divers from the FBI's Underwater Search and Evidence Response team combed the Schuylkill River near Falls Bridge for hours Monday, and the search is slated to pick up again today. The bureau won't say why it's searching that area, but an official says divers aren't looking for a body or human remains.

3. Heat wave: Philadelphia's fourth official heat wave of the summer should become official today, as forecasters say the mercury will top 90 degrees for the third-straight day. The temperature hit 91 degrees on Sunday and 95 on Monday.

4. Aggressive drivers: For the next month, Pennsylvania law enforcement agencies along the 350-mile Route 30 corridor will be working overtime to target aggressive drivers. Officers will be on the lookout for and issuing tickets to motorists who are speeding, tailgating, running red lights and exhibiting other signs of road rage.

5. Trains to KoP?: SEPTA will unveil plans for rail service to King of Prussia and Valley Forge at a public meeting today. Several options for the long-awaited extension of the Norristown High Speed Line will be presented at the 4 p.m. meeting at the Radisson Hotel Valley Forge.