Pakistan's former prime minister Imran Khan on Tuesday told the Lahore High Court (LHC) that a third assassination attempt has been hatched against him and sought to quash all political cases against him, saying regular court appearances will endanger his life. Khan has filed a petition in the LHC requesting it to quash all 121 cases registered against him in different cities of the country on various charges like treason, blasphemy, committing and inciting violence and terrorism.