Add spaces: "PrivacyandprotectionofpersonalinformationisattheheartoftheDTA'sworkondigitalidentity.

Answer: "Privacy and protection of personal information is at the heart of the DTA's work on digital identity.

Add spaces: Thereisstillalotofworktobedone,asthereisusuallyabigdifferencebetweentheprizesforsecondorthirdplacesandthatwhichispaidouttothewinner.

Answer: There is still a lot of work to be done, as there is usually a big difference between the prizes for second or third places and that which is paid out to the winner.

Add spaces: InfactHurwitzandKleincomplementedeachotherextremelywellforthereasonsthatYoungindicatesin:

Answer:
In fact Hurwitz and Klein complemented each other extremely well for the reasons that Young indicates in :