ceremonies will also happen in arlington, virginia at the pentagon anding shangsville, pennsylvania, the sight of the crash site of united flight 93. whitt janson has more. >> reporter: two bright beams lit up the new york city skyline on the eve of the 8th and verse of the attack, the tribute lights were being tested ahead of today's memorial. this morning vice-president biden will attend a ceremony at ground zero. more than 100 volunteers who worked at the trade center after the tours collapse will read the names of the victims s even though it happened nearly decade ago for some it feels like yesterday. >> that compression your life flashes before up, it does. >> reporter: he saw up close ground zero, where more than 2700 people died. today construction is still being done to complete a lasting tribute to the victims a memorial museum. >> it is not a pit. it is not ground zero. it is now a zion of rebuilding and a sign of real hope. >> reporter: this year for the first time the country's national day of mourning will also be a national day of service. president obama is encouragin

president and robert gates and former secretary of state, colin powell will be at a memorial in shangsville, pennsylvania. >>> on wednesday, president obama will update us on the financial crisis. a year to the day of the lehman brothers collapse. the president will talk about what's been done to ease is crisis and how to keep it from happening again. but tim geithner warns, there's no quick fix. >> i think the u.s. financial system today is in substantially stronger shape than it was three months ago, six months ago and nine months ago and on the aefr of this recession. it will take a while to get through this but it will take longer because we're doing it right. >> it's not clear if president obama will talk about new policies on mopped's speech. >>> one dose of the swine flu vaccine may be strong enough. scientists thought adults needed two. a study now says up to 96% of adults vaccinated should be protegted with a single dose. and it kicks in within just ten days. these are people getting the remember flu shot. >>> prosecutors will seek the death penalty against the former sunday school