TheCongressional Budget Officein 2007 answered this question in the following manner Over the past two decades , most efforts to estimate the fiscal impact of immigration in the United States have concluded that , in aggregate and over the long term , tax revenues of all types generated by immigrantsboth legal and unauthorizedexceed the cost of the services they use . blogforeignpolicy 203984 i l l e g a l i m m i grantsbenefittheuseconomy <| sep |> Orange ALPS , ICL one per desk capscustom layout based on deadkey workman and spacefn <| sep |> A MySQL Master Master set up . Clustering is too big for our needs and needs way too much RAM in particular , but we need to provide HA . Currently this is failed over manually away from Azure which is fine because failures are rare and we can take the downtime and planned reboots are all us . But obviously Azure reboots VMs in availability sets essentially at will .