Apparently you don't know the law. A seal indictment keeps the fact secret, the judge usually issues an arrest warrant, and when the suspect is in custody, he unseals the indictment for the arraignment.
apparently whatever it is you claim to know about the law you do not understand, in any case that is certainly true of my post you responded to,
all you did was use a qualifier [the word usually] so you could answer the next obvious question [did he issue an arrest warrant?] with "I don't know"...and you completely avoided the question that exposed the problem with your claim, "if you are worried about them fleeing why wait several days and tell the media you have indictments? anyone who is guilty will certainly flee."