CALGARY, Alberta (AP) — Former President George W. Bush says he won’t criticize President Barack Obama because Obama “deserves my silence,” and says he plans to write a book about the 12 toughest decisions he made in office. Bush’s speech Tuesday at a luncheon in Calgary, Alberta was his first since leaving office. He declined to comment about the Obama administration like former Vice President Dick Cheney. Cheney said Sunday that Obama’s decisions are threatening the nation’s safety. –Contact The Daily Reveille’s news staff at [email protected]