Frankfurt (dpa) - After the deadly attack on an eight-year-old boy in Frankfurt's main station, the debate continues on more security personnel at German train stations. The Greens believe the announcement by Interior Minister Horst Seehofer to use more police there, for unrealistic. "The personnel situation at the Federal Police is very tense, despite higher hiring," said domestic spokeswoman Irene Mihalic the newspapers of the Funke media group. "So you have to wonder where the extra staff is supposed to come from."