." ♪ carroll: welcome back to "bloomberg businessweek," i'm carol massar.the magazine's opening remarks this week, reporter stephen ferris writes, you're it may sound horrified by the rise of donald trump, but the truth is, he'll be right at home in paris or berlin. after all, europe has given rise to nationalistic politicians such as france's jean marie le pen, and so promoting media personalities. in fact, donald trump and immigrant brand is shared by numerous political parties across the continent from finland to greece to switzerland. in other words, europeans want to remember that old proverb do , not throw stones in glass houses. but will this transmit in will this movement have legs in america? you can read the article about week'ss trump in this "bloomberg businessweek." donald trump stays in the spotlights in this week's politics section. would you believe that trump's political rise is partly thanks to a software design by antiwar activists? the software is called nation builder. i spoke to adam in san francisco. adam: nation builder is a software