COSTELLO: Just about 50 minutes past the hour. Time to check our "Top Stories". A team on horses is expected in New Orleans today to join the search for 26-year-old second grade teacher Terrilyn Monnette. The Californian native was last seen March 2nd at a bar in a quiet neighborhood. She was celebrating her nomination as "Teacher of the Year" in her district. Top scientists will investigate whether Hugo Chavez was possibly poisoned with cancer. That's the word from the Venezuelan President's temporary successor. Comes a week after Chavez's death. CNN's Zain Verjee has more for us.</s>ZAIN VERJEE, CNN INTERNATIONAL ANCHOR: Carol, it may sound totally crazy but Venezuela is going to look into claims that Hugo Chavez's cancer happened because he was poisoned. Well by who? Officials there are saying his enemies. The acting President Nicolas Maduro is saying that he is formally opening an investigation adding this, quote, "We have an intuition that our commander, Chavez was poisoned by dark forces that wanted to be rid of him." Foreign scientists are going to be asked to join the probe. He went on to say that the U.S. had labs creating cancer in the '40s and '60s so while the State Department spokesman says that it's totally absurd to think that the U.S. caused Chavez's cancer. Now some analysts are saying that all of this sounds crazy but it's an internal political ploy just to keep the attention on Chavez still and to get some benefit from the emotional outpouring from his supporters -- Carol.</s>COSTELLO: Zain Verjee. To the Web where federal rules now require short form ads like the ones on Twitter and Facebook to include traditional product disclosures. "The Wall Street Journal" reports that even the tiniest online ads must include details like whether a celebrity was paid for an endorsement. Dwight Howard's homecoming was something he'll probably remember for a long time. Coming up, you'll hear how Orlando Magic fans welcomed him back.
Experts to Probe if Chavez Poisoned