Who is the Modern Gadfly?

Back in the day, Socrates was considered a Gadfly.  He spoke his opinions, even if they were considered heretic, blasphemous or impious.  He questioned the order or things and the nature of society and the people within it.
Nowadays, we have many gadflies.  Those most famous are perhaps not as keenly philosophical on life as a whole as Socrates was.  Many instead question politics and government.  I believe Michael Moore is the example of a present day gadfly.  He has written many movies and documentaries that question the government and many of their institutions.  Some of his statements are more radical than others, but he does use researched facts and public opinions to support his claims and criticisms on American society nowadays.
The first time I was exposed to Michael Moore was in seventh grade.  My social studies teacher showed us his documentary, "Sicko".  In this documentary, Moore criticizes the American health insurance system.  He first addresses those in America who have been rejected under the system and could not get adequate care.  For example, one man chopped off two of his fingers in a construction accident.  When he arrived at the hospital, they told him insurance would charge him $60,000 to reattach the middle finger and $14,000 to reattach the ring finger.  The man picked the ring finger and to this day only has four fingers.  Even though the doctors could have performed the surgery to reattach both fingers, this difficult choice had to be made because a working class man did not have the funds to have a necessary medical procedure.  Under a working health care system no man should have to decide between fingers because he doesn't have money.
Michael Moore then films in foreign countries where they have alternate healthcare systems.  He traveled to Canada, France and Cuba.  In these places, healthcare is a social program and is free for everyone, just as public education is in America.  Moore visits clinics and hospitals and never ceases to be amazed when the final bill comes out to be $0.  There are even windows at which you can receive money after visiting the hospital to reimburse for the cost of travel.
Moore then asks the obvious question, "How come other countries, even Cuba, have better health insurance systems than the United States?"  It is a difficult question.  In his documentary he mainly shows the negatives of the U.S. healthcare system and the positives of other systems.  Perhaps the benefits and downfalls are not as extremely opposite as he portrays them to be.  But he still asks difficult questions that many government officials would rather he not ask.  In this way, he is the modern gadfly.