Attentat déjoué : les suspects (le plus jeune a 16 ans) voulaient décapiter un militaire.  'Foiled attack: The suspects (the youngest is 16 years old) wanted to behead a soldier.' The parents are saying:  C'est l'heure du goûter, petite canaille.  'It's teatime, little rascal.' "petite canaille" basically means a scoundrel/rogue but it can be used in affectionate manner as it seems to be in the photo for 'rascal'.