President Obama and the First Lady participated in one of the hundreds of service projects taking place around the country to commemorate the victims and heroes of the 9/11 tragedy.

The project they worked on today involved the building of three homes in a development that will eventually encompass 53 houses in Northeast Washington, D.C. It should all be completed in early 2010.

The First Couple toured the site and lent a hand with painting the living room of one of the homes.