I have watched Congressman Keating since his election. He is an strong and dedicated to constituents. I am a Realtor who believes in protecting property rights of homeowners. Congressman Keating understands the housing issues such as Flood insurance, protecting the Mortgage Interest Tax Deduction and other such issues.
Judging for the closed-ness of Apple, you probably won't get much credible answer from Apple's own people. OS X and iOS are primarily written in Objective-C with some C++ in between (e.g. IOKit, WebKit, etc) and probably some C as well for the kernel stuff. However looking at Apple's software engineering jobs vacancies [1], these are also relevant programming languages at Apple: Java.
Go is awesome! It looks like C, but don't be deceived - it is completely different! The Go Programming Language is a new programming language from Google. It is very different than many other modern programming languages, and is a great substitute for C or C++. In this course we will cover most of the Go programming language and look at some of the neat things we can do with Go.