In this task, you are given news articles and you need to generate a highlight, i.e., a short summary, with a maximum length of 10 lines.

BOSTON, Massachusetts (CNN)  -- The operator of a trolley that rear-ended another trolley should have been able to see the other vehicle was stopped 480 feet ahead, a federal investigator said Monday. Passengers walk past firefighters at a Green Line station in Boston after the trolley collision Friday evening. The trolley driver has told investigators he was text messaging during Friday night's collision, which injured 20 people. The Massachusetts Bay Transportation Authority, which previously had banned operators from using cell phones and other portable devices, now has told employees to leave the devices at home while on duty, National Transportation Safety Board member Debbie Hersman said Monday. Hersman also noted investigators have determined that the operator may have missed some crucial indications of a stopped trolley ahead on the tracks.  Watch new transit rule on cell phones » . "There were several signals -- two green signals, a yellow signal and a red signal -- coming out of the station, and the point of collision occurred 80 feet past that red signal," Hersman said. "We did a site-distance test, and we know that the operator had the ability to see the trolley stopped in front of him 480 feet in advance of the collision." Boston officials said over the weekend that the trolley operator was using his cell phone. Numerous media outlets, including CNN's Boston affiliates, have identified the driver as 24-year-old Aiden Quinn. "The operator of the striking train was interviewed at the hospital by two detectives," said MBTA general manager Daniel Grabauskas. "He admitted that he was texting at the time of the accident." The operator told detectives that, when he looked up, "it was too late as he applied the brake and the train struck the other trolley," Grabauskas said. He described himself as "outraged." "We have reinforced for a number of years that the use of cell phones or any other kinds of electronic devices while operating a train or a bus is absolutely prohibited," Grabauskas said. Though the investigation is ongoing, he said, the two-year employee will be fired if his version of events is confirmed. None of the injuries was considered life-threatening, the MBTA said. The collision happened at 7:18 p.m. ET Friday as the Green Line trains were traveling between the Park Street and Government Center stations in downtown Boston. Both trains were traveling westbound when one train rear-ended the second, an MBTA official said. A train operator also was text messaging last year in a California train crash that killed 25 people. CNN's Rob Frehse and Gary Bender contributed to this report.
Federal investigator says Boston trolley crashed 80 feet past a red light .
Trolley driver told investigators he was texting during wreck that injured 20 people .
Drivers already banned from using phones; authority now says keep them at home .

BABAHOYO, Ecuador (CNN)  -- At least 10 people have died and thousands have been left homeless after torrential rains inundated large parts of Ecuador, officials said Thursday. Authorities said the rains, which began a week ago, were the worst in a quarter century. Civil defense officials said more than 10,000 families have been affected. Los Ríos -- north of Guayaquil -- was the hardest hit of nine provinces affected, civil defense officials said. In Los Ríos province, five people died when an ambulance drove into a hole at the side of a street at dawn Thursday. A newborn boy, his parents, a doctor and a driver were killed. Streets also were flooded in the capital of Quito.  Watch the scenes of devastation in Ecuador » . On Wednesday, President Rafael Correa declared a state of emergency and ordered 2,000 members of the army and the police to help rescue workers. Correa increased by $25 million the $10 million he already had allocated for the emergency efforts. He also directed another $88 million to municipalities. Once the crisis has eased, an emergency fund will give seed and fertilizer to help farmers whose fields were washed away, Ecuador's government said. There also have been reports of livestock drowning. Cristina Medina, a spokeswoman for the Ecuadorean Red Cross, said provinces most heavily affected were along the Pacific coast, where drinking water was often in short supply. In some towns, high waters forced entire neighborhoods to evacuate, Medina said. E-mail to a friend .
At least 10 people have died in torrential rains in Ecuador, officials say .
Authorities say the rains are the worst in a quarter century .
Civil defense officials say more than 10,000 families have been affected .
Ecuador's president declares state of emergency, orders army, police to help .

(CNN)The former imperial capital of Hue sits just below what was once the demilitarized zone between North and South Vietnam and was, near the end of the war, the site of some of its fiercest fighting. You've seen it in newsreel footage -- and recreated (in England) in Stanley Kubrick's "Full Metal Jacket." It's one of the few areas of Vietnam I've never been. Hue is, in many ways, a city of ghosts, of memories and spirits -- and we play on that in Sunday's episode. It begins with a camera movement inside a "Spirit House" -- the dollhouse-sized shrines that many believers keep outside their homes and businesses. The Vietnamese are largely ancestor worshippers. Helping your deceased relatives into the next life -- and making sure they are happy while there -- is important. On special days and holidays, families visit temples and pagodas and leave offerings, often food, sometimes replicas of money or appliances or luxuries for the departed. Things they liked in life that might make the afterlife more comfortable. Spirit houses, as I understand them, are designed to deal with the problem of hungry, dissatisfied spirits who may not be settled, who have, for one reason or another, unfinished business left behind. They sit out front, or near the house or store, usually filled with incense and offerings, in the hope of distracting the spirits away from the main destination. In the weeks following the initial North Vietnamese taking of the city of Hue, many hundreds -- if not thousands -- of citizens, deemed dangerous or counterrevolutionary or otherwise undesirable, were summarily executed and buried in unmarked mass graves by the communist forces. When the United States Marines and army of South Vietnam retook the city, it was only at the end of brutal, house-to-house fighting and finally, airstrikes, that Hue was retaken -- flattening much of the city in the process. Many, many people were lost, their bodies never identified or recovered. This, the inability to find the physical remains of a relative, is a particular agony to Vietnamese. For this reason, this episode is haunted by ghosts. We hadn't intended it to be so. But that definitely emerged as a theme. You feel it as you drive the streets and early morning rice paddies on a scooter, walk the parapets of the ancient citadel, look at the flag hanging in the mist across the Perfume River. At one point, a young woman I'm having dinner with casually mentions that her mother doesn't like her to go out after dark. Too many ghosts. I don't want you to think that this episode of "Parts Unknown" is some kind of a bummer -- a depressing discussion of a war about which there are still strong feelings and disagreements here. It's not. One of the crazily awesome, incongruous things about Vietnam that I've found from the first time I visited is how friendly, welcoming, quick to move beyond the past the Vietnamese are. It is an incredibly beautiful country. One filled with passionate, proud cooks, and opinionated, enthusiastic eaters. You will see me with some old friends -- and you will, as always in Vietnam, see me eating some amazing food. And if you thought pho was the best thing ever? Wait 'til you see Bun Bo Hue.

Anthony Bourdain returns to a country he's loved since his first visit .
The city of Hue, Vietnam, is a city of spirits and ghosts .
The episode deals with the past, but also with the vibrant present .