A picture released by the Fars News Agency shows supporters of defeated Iranian presidential candidate Mir Hossein Mousavi taking part in a rally in Tehran on June 17, 2009. Getty Images

Here are just some of the stories we'll be covering this morning:

Could this be a moment of truth in Iran? We are about 90 minutes away from what are expected to be massive protests across the nation.

And within the past hour...The government rolling out its toughest crackdown on foreign media, forbidding CNN from not only covering today's demonstrations but limiting our reporter there to just one report.

And this morning - because of the crackdown - there's no way to overstate the importance of the internet in the protest movement. More and more information is being gathered by ordinary citizens and distributed on social networking sites - and we're keeping an eye on all of it.

And Hillary Clinton sidelined. Not by tough diplomacy... but a nasty fall outside the White House. We'll tell you what sent her to the hospital last night.

Supporters of defeated Iranian presidential candidate Mir Hossein Mousavi run in the streets during protests June 16, 2009 in Tehran, Iran. Getty Images

Here are the big stories on the agenda today:

• A clampdown in Iran.  All foreign journalists – now banned from covering demonstrations on the streets, told to stay in their hotel rooms.  But we have the pictures the Iranian government doesn't want you to see.  Our Christiane Amanpour, who was a victim of the crackdown first-hand is live on Iran’s attempt to control the message.
• President Obama is ready to grant health care and other benefits to same-sex partners of federal employees.  But is it enough to win over gay and lesbian groups, who say they're disappointed by the president's policies.  We’re live at the White House.
• New developments on the fate of two American reporters, sentenced to hard time in North Korea.  That country now claiming Laura Ling and Euna Lee admit committing the crimes with which they were charged.  This morning we have an exclusive interview with Laura’s sister, Lisa Ling.
• Senator John McCain, live.  He's been harshly critical of the way President Obama's handling the Iran uprising.  You'll get to hear specifically why.

A protestor holds up a hand with blood during an opposition rally where Iranian supporters of defeated reformist presidential candidate Mir Hossein Mousavi demonstrated in the streets on June 15, 2009 in Tehran, Iran. Getty Images

Here are the big stories on the agenda today:

“We fight, we die.” Breaking news out of Iran. The government's Council of Guardians is now agreeing to recount some of the ballots from last week's disputed presidential election. Seven people are now dead in a bloody protest for democracy. Iran state radio says they were killed when they tried to storm a military building yesterday in western Tehran. More rallies on both sides of the vote are planned this morning. CNN's Christiane Amanpour is live in Tehran – amid the continuing protests.

G.M. of the sky? Staggering losses being posted this year by the U.S. airline industry. The numbers, in the billions, are even worse than expected. Carol Costello has more on whether the government might have to step in and take over, like it did with General Motors.

And, “Late Show” host David Letterman is saying sorry to Governor Sarah Palin, for a joke about her teen daughter being “knocked up.” Some are saying it’s still not enough. We have Governor Palin’s response.

Supporters of defeated Iranian presidential candidate Mir Hossein Mousavi help evacuate an injured riot police officer after he was beaten by demonstrators during a protest in Valiasr Street in Tehran on June 13, 2009. Getty Images

Here are the big stories on the agenda today:

• Breaking news now.  Protesters are gathering in the streets for a third day in Tehran, Iran, facing off against secret police with batons and baseball bats.  They say the reelection of president Mahmoud Ahmadinejad was rigged.  Iran’s supreme leader has now said any legal challenges will be investigated.  We’re live on the streets as people gather for what is being deemed an illegal protest this morning.
• Your safety in the skies  Federal regulators holding a rare airline industry summit today to address some major concerns about the safety of passengers flying the nation's regional airlines.
  CNN’s Allan Chernoff was the man who exposed some scary things at the country’s smaller carriers.  He’s covering the hearing for us today.
• Here a czar. There a czar. The Obama Administration is handing out the title left and right. Well, maybe not so much right… Carol Costello is with us now to tell us what's behind the powerful title.  And how many are we up to now?

Investigators from the Federal Bureau of Investigation examine a bullet ridden door at the entrance to the Holocaust Memorial Museum June 11, 2009 in Washington, DC. Getty Images

Here are the big stories on the agenda today:

• Big tobacco – on the ropes.  Congress has granted the FDA the power to change the way cigarettes are made and sold in America.  We're paging Dr. Gupta – to find out what this new law means for our health and our healthcare costs. We’re also talking to the man who first asked the question: Is nicotine a drug? He’s Former FDA Commissioner, Dr. David Kessler.
• The enemy within.  After the man accused of the Holocaust Museum killing is officially charged with murder, we take a look at hate groups, hundreds of them, springing up all over America.
• A CNN exclusive: Is al Qaeda shifting away from Afghanistan and Pakistan, for a new power base in Africa?  Barbara Starr reports U.S. officials are keeping a very close eye on Somalia, for more than pirates.
• Mercy for Madonna.  The pop superstar wins her adoption appeal in Malawi for a three-year-old orphan girl – named mercy.  A lower court had ruled she could not adopt again in April, but now the high court has ruled in her favor.  We'll go live to Kenya for the latest.

Police officers block the street leading to the main entrance of the Holocaust Museum on June 10, 2009, in Washington, DC, after a shooting (Getty Images). Law enforcement sources identified the suspect as James W. von Brunn (inset).

Here are the big stories on the agenda today:

• New information this morning about the 88-year-old white supremacist, who police say opened fire with a rifle at the Holocaust Museum in Washington.  He is a known Holocaust denier – who even claimed "The Diary of Anne Frank" was a hoax.  Police walked out of his condo with boxes overnight.  We’re live outside his home, and have more on his dark history of hate.
• Former Defense Secretary William Cohen was inside the museum when this went down.  He’ll share his eyewitness account with us this morning.
• New evidence this morning supporting theories that Air France Flight 447 broke apart in the air, before crashing into the ocean.  Aviation experts say the debris and the condition of bodies found 50 miles apart point to that.
• Act now! This may be the best time, in a long time – to buy a new house!  That’s if you can afford it. Christine Romans on the incredible deals that are out there right now – and why you better act fast.