Really, no one should be there unless they are there to help. That includes politicians too. Don't go to a disaster to gawk or pretend like you really care and don't go there to campaign.
GWB was savaged for appearing 'too aloof' from Katrina's victims because he flew over rather than land and, presumably, rent a jet ski & begin picking up survivors.
I don't fault the politicians for going to disaster areas. But it definitely is in poor taste for some idiot to shove a microphone in some distraught victim's face. What will anyone learn from watching a mother cry? Thats not news.