<br /> The 26 countries in the Schengen agreement allow free movement among them without border control.<br />But Finland may reinstate border controls for travelers from Schengen countries for four days<br />during the Helsinki summit between Trump and Russian President Vladimir Putin.<br />“In order to increase security, we have assessed that reinstating control in our internal borders would be justified,” said Kimmo Elomaa, a senior official at the Ministry of Interior. <br />
