'Nightline' Daily Line, May 29: Bob Dylan Awarded Medal of Freedom

Welcome to the "Nightline's" live blog, where the staff share interesting tidbits throughout the day.

7:14 p.m. ET: Katie Couric's exclusive with Princes William and Harry, a hunger crisis in Niger, the White House honoring Bob Dylan with the Medal of Honor - that's all on tonight's Nightline Qwiki.

It only takes a minute (literally) to watch:

Play the Qwiki: NIGHTLINE 5/29/12

6: 32 p.m. ET: "Nightline" anchor Bill Weir RT'd Dr. Jill Biden, the wife of Vice President Joe Biden:

6:07 p.m. ET: It's hard to see how Trump's repeated claims that Obama was born in Kenya help Mitt Romney, say strategists on both sides, as a Trump fundraiser for the candidate gets under way in Las Vegas tonight, ABC's Matt Negrin reports.

Obama campaign manager Jim Messina tweeted on Twitter, "Two words define Mitt Romney today: Donald Trump."

5:22 p.m. ET: "Nightline" anchor Cynthia McFadden tweets:

4:45 p.m. ET: "Nightline" anchor Terry Moran once again on Bob Dylan being awarded the Medal of Freedom:

Yeah he does:

Credit: AP Photo

4:02 p.m. ET: "Nightline" anchor Terry Moran tweets:

3:06 p.m. ET: Barbeque chips, anyone?

Credit: AP Photo

ABC's Randy Kreider reports: Mexican authorities arrested four alleged members of the Knights Templar drug cartel after a series of firebomb attacks on a potato-chip company owned by the U.S. food company PepsiCo, the first attack on an American multinational firm in Mexico's ongoing drug war.

Read the full story HERE.

1:35 p.m. ET: While Facebook CEO Mark Zuckerberg and his new bride enjoy their honeymoon in Rome - ABC's Matthew Rosenbaum points out that honeymoon photos surfaced on Twitter, not Facebook, ironically - there continues to be trouble for the company at home.

The bride and groom celebrate their honeymoon. Credit: Xposure

ABC's Bill McGuire reports Facebook shares fell 7 percent to below $30 today, the lowest since the initial offering, as options trading on the stock began.

12:16 p.m. ET: Is Israel behind the largest cyber spy weapon ever developed?

ABC's Alex Marquart reports: A top Israeli official hinted today that his country could be behind the most sophisticated cyber espionage program ever developed, known as Flame, which infiltrated and has spied on computer systems throughout the Middle East, including those in Iran, for the past two years.

Read the full story HERE.

10:24 a.m. ET: What was a tranquil presidential election process last week  in Egypt turned violent overnight after the results came in.

A mob set fire late Monday to the campaign headquarters of one of the two Egyptian presidential politicians facing each other in a runoff that will decide a new leader after last year's popular uprising, the first sign of unrest after the voting yielded divisive candidates, the Associated Press reported.

The runoff election will take place June 16-17.

Credit: AP Photo/Nasser Nasser

9:45 a.m. ET: Beach trips, backyard barbeques and Memorial Day ceremonies were a washout for much of the South, as Tropical Storm Beryl dumped tons of much needed rain in the region.

The Associated Press reports the storm left little damage in its wake, but knocked out electricity in several communities, including Jacksonville, Fla., giving the city a chance to test its emergency preparedness systems.

"You can call it a dry run, but we were prepared," Jacksonville Mayor Alvin Brown said.

Credit: Kelly Jordan/The Florida Times-Union/AP Photo