I'll just point out two things:
i) The US temperature record is reliable. The arguments you quote, also used Anthony Watts; surface stations site, do not stand up to actual statistical analysis. I recommend you read the NOAA summary of the US surface temperature record - http://www.ncdc.noaa.gov/oa/about/response-v2.pdf - which directly responds to these issues.
ii) Even if it the US temperature data were not reliable, the evidence for historical temperature change is not based solely on the US surface temperature record, or the global land surface temperature record. There are sea surface temperatures, ocean heat content, weather balloon measurements, borehole temperatures, ice core measurements, a wide variety of biological proxies.
I'm not arguing that you need to support any particular policy. I'm merely relaying what the science tells us about climate change. There is a difference between accepting the science and supporting particular climate and energy policy. Don't conflate the two. You don't need to reject sound science to reject the policy decisions.