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When President Obama laid out his proposals Wednesday to reduce gun violence, he included a call for Congress to ban "military-style assault weapons."

Lucas Codognolla's hands shake as he waits in line at the Bridgeport, Conn., DMV for his turn to take the road test.

"I don't know if it's nerves or the excitement, you know?" he says.

The 22-year-old's family emigrated from Brazil when was just 9. When he turned 16 and wanted to get his driver's license, his parents sat him down and told him the truth: He was in the country illegally.

Initially, he lied to his friends about why he couldn't drive, he says. But then, as he got older, driving simply became necessary.

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In Afghanistan today, Taliban militants staged a brazen attack in the heart of Kabul. Their target was the headquarters of the National Directorate of Security or NDS - it's Afghanistan's equivalent of the FBI.

As NPR's Sean Carberry reports, the attack began with a suicide bombing, then five militants tried to storm the compound.

(SOUNDBITE OF SIRENS AND GUNFIRE)

Skin cancer? There's an app for that.

But the same smartphone that brings you Fruit Ninja might not be the best tool for diagnosing deadly melanoma.

Smartphone apps that evaluate moles for skin cancer risk missed threatening moles one-third of the time, according to a study by dermatologists at the University of Pittsburgh Medical Center.

JPMorgan Chase reports that its profits were up 53 percent in the fourth quarter of 2012 — but CEO Jamie Dimon's pay will be cut in half, after the bank lost billions of dollars on risky bets made in its London office. The incident tarnished the reputation of Dimon, who had successfully steered his bank through the recent financial crisis.

"This past year has been a bruising one for Dimon," as NPR's Steve Henn reports for our Newscast unit:

States aren't likely to prevent many shootings by requiring mental health professionals to report potentially violent patients, psychiatrists and psychologists say.

President Obama's historic plunge Wednesday into the politics and realities of gun control in America has mobilized advocates on both sides of the issue.

But though his major proposals, from banning assault rifles to more stringent background checks and ammunition limits, are being rolled out in the shadow of the school massacre in Newtown, Conn., their Capitol Hill prospects remain highly uncertain given long-standing resistance to such efforts.