now we meet ana lilia perez, a mexican reporter and writer who found out first-hand that corruption, and not the drug cartels, is the biggest problem in mexico. we caught up with her here in germany. >> taking a walk without a bullet-proof vest -- that's been a liberating feeling for ana lilia pÉrez in the six months she's been in hamburg. at home in mexico she spent the past few years protected by bodyguards to ward off murderous attacks. >> it makes a huge difference to be living in one of the safest countries in the world -- a country where it's not normal to see people being gunned down on the street or where armed groups take over entire villages. this is very positive for me because it helps me realize that the things going on in my country are not normal and that mexicans shouldn't accept that situation as normal. >> the journalist was only 20 when she first made a name for herself as an investigative reporter for daily and weekly newspapers. she's convinced her work can bring about change. >> journalism is a way of life for me, a world view. at some point journalism becomes a