Rival Palestinian groups hold crisis talks in Mecca.  Greener rules to make cars more environmentally friendly but at a cost. Emergency talks in Mexico after seven people are dead. Also in the program, the biggest sex discrimination case in American history possibly. Giant Wal-mart prepares for battle. The world's media abort the largest passenger plane. Can airbus change the a-380's image.

>> After months of in-fighting, the message is clear enough. Round-table talks in Mecca between Palestinian leaders will lead in agreement. Failure, they say, simply not an option. 

>> In the Saudi holy city of Mecca, the leaders of the rival Palestinian factions have gathered. President Mahmoud Abbas described the bloodshed of recent days as a serious setback an s reach agreement. His Fatah movement, once dominant within Palestinian politics, is now locked in a bitter power struggle with Hamas, the party of the Prime Minister, but since then there's been a stalemate, not least because Hamas and its supreme leader refuse to recognize the right of the state of Israel to exist. The leader sound determined to find a deal.

>> ( Translated ): I assure the Palestinian people that we will not leave holy Mecca until an agreement is reached. There is no other alternative. Hamas and Fatah partnership. We achieve our Palestinian goals. We must form a national unity government.

>> The violent clashes that have erupted in Gaza have at times been ferocious. Last week alone more than 20 people died in fighting, and around 100 have been killed since December. All these of fresh talks to restart a peace process that has been going nowhere. Prime minister Ehud Olmert says he will meet President Abbas and the U.S. Secretary of state, Condoleezza rice, in two weeks. But the Palestinians must first make peace among themselves before any significant progress can be made with Israel. Dominic Hughes, bbc news.

>> We're going to pick up the very latest on what has taken place in those talks from our Gaza correspondent in just a few minutes' time. A round-up of other stories. The officer of two American pilots who mistakenly killed a British soldier has described the incident as a horrible accident. Matty Hull was killed. The head of the Idaho air national guard expressed sympathy but said an investigation cleared his pilots of wrongdoing. Indonesia's been plagued by floods in recent days. They are beginning to recede as you can see from pictures here, but a huge amount of filthy water still there with the threat of disease coming with it. Possibly also more rain to come, as well, and we understand now at least 50 people have died in the course of that flooding. The Brazilian President has said that rich countries should stop trying to tell Brazil how to manage its Amazon rainforest and they should start reducing their own greenhouse gas emissions.  Luizinacio Lula da Silva said rich countries had already destroyed their own forests. Brazil has rejected proposals for any international control of the rainforest. This is the world's largest source of fresh water and of biodiversity. The cost of motoring across Europe could go up if proposals to tackle global warming get the green light. From 2012 there could be stricter rules on carbon dioxide emissions for all new cars. This is the European commission's request, but car manufacturers say the price of vehicles could rise. They want the proposals to be watered down.