I agree, tlcya.
Just laying down some information here. Would be happy to provide a link for anything mentioned below.
What have Deborah and Jeremy done to help find Lisa?
In the early stages of the investigation, they signed consent forms for searches of their home, shed, cars, work-van, camper and computer. They allowed police unfettered access to their property. They allowed police to bring cadaver dogs into their house. They allowed police to collect hair samples and fingerprints. They consented to buccal swabs for themselves and their children. They volunteered to take polygraph examinations. They allowed police to collect elimination smell swabs from them for specially trained search dogs (FYI, DB's brother PN also consented to this). They allowed access to Lisa's pediatrician records. Lisa's brothers were interviewed on the first day, one boy for 30 and the other boy 50 minutes. The brothers were interviewed again on November 11th 2011. Lisa's parents were interviewed extensively at the police station early on. They were interviewed by police again in person around the time of the Dr.Phil show. At one point Deborah gave investigators more than 100 pages of handwritten notes and other material that contained her recollections from the night Lisa vanished and other details. The parents say they have had ongoing telephonic communication with police and FBI since Lisa went missing. On the one year anniversary, police said communication with the parents has been ongoing but they would like to sit down for an interview with Deborah one-on-one. In the 2 year anniversary press release, KCPD did not request another sit down interview with Deborah. Shortly after the 2 year anniversary, Chief Forte indicated that there is no need to speak with Deborah one-on-one again. They have done many media interviews- in my opinion they have done just as many as other parents of missing children, and in some cases more. Lisa's mother maintains an official website for Lisa. They have mailed out bumper stickers, flyers, and other awareness items all over the world. Their SUV has a large decal on the back window, reminding people that Lisa is missing. They have held numerous public and private vigils for Lisa over the past two years. They worked with NCMEC to have Lisa's age progression photo generated and released as soon as possible.
Most (not all) television appearances by Lisa's parents-
https://www.youtube.com/playlist?list=PLgUlLzcjJr8weZxlQmQzg7oGrPuL2CZxa