Ann Friedman's post on the subject is the best around:
Do reporters like Lara Logan and [Mac McClelland] face greater threats to their safety than male reporters do in similar situations? Yes. But do they also, by dint of their gender, gain greater access to certain sources and arguably do their job better? Sometimes, yeah. I have a hard time believing that rape survivors in Haiti would have been as open with a male reporter as they were with Mac. Doing everything in our power to ensure the safety of women reporters and supporting them unequivocally when that safety is threatened or violated isn’t just important on feminist grounds. It’s important on journalistic grounds, too.
And, of course, it isn't just reporters who face these kinds of dangers.