Lebanon this week marks the anniversary of a civil war that began three decades ago. Some fear there are stark similarities between that troubled period and today: Deep political divisions, sectarian violence and the ominous specter of two rival governments. On April 13, 1975, an ambush by Christian gunmen of a busload of Palestinians sparked a civil war that lasted 15 years, killed 150,000 people and caused US$25 billion in damage. Marking this year's anniversary, the rusted bullet-scarred bus was displayed at a former crossing point on the line that separated Beirut's Christian and Muslim sectors during the war. Ibrahim Eid, a Lebanese civil society coordinator, said the bus was "a symbol of this day" and should "raise awareness after what we've seen in the last year."