That buildings shield reception is not a political issue but a physical limitation.
When I'm in my super market I know that I will not have reception in the back, same in the underground part of my fitness center.
Also, some buildings change over time in how they attenuate, especially freshly built ones where the walls are still "drying" can have close to 0 reception inside. When my parents built their current home, I had to keep an informal map of where the signal was strong enough to use GPRS (yay 7s ping in MUDs) and for voice we usually went outside.